Compare Eufy S340 Solar Camera vs Reolink Altas PT Ultra 4K Solar Security Camera

Eufy S340 Solar Camera
Reolink Altas PT Ultra 4K Solar Security Camera

Quick verdict

What each product is best for

Choose Eufy S340 Solar Camera for Optical zoom performance and Operating temperature range.

Choose Reolink Altas PT Ultra 4K Solar Security Camera for Recording start-time lag and Continuous recording capability.

Comparison Takeaways

Eufy S340 Solar Camera

Where It Has the Edge

  • Optical zoom performance is 4.6 vs 1.5. Optical zoom is one of the strongest features, repeatedly helping reviewers see license plates, faces, and close-up detail.
  • Operating temperature range is 4.4 vs 2.5. The sole opinionated temperature-range evidence says the camera keeps performing reliably across hot and cold conditions.
  • Microphone sensitivity is 4.5 vs 3.1. Microphone pickup is praised for capturing outdoor sounds and being quite good during live use.
  • Power options (solar panel) is 4.7 vs 3.8. Solar power is the most consistently praised feature, with many reviewers saying it keeps the camera topped up...

Reolink Altas PT Ultra 4K Solar Security Camera

Where It Has the Edge

  • Recording start-time lag is 4.7 vs 2.4. Pre-recording and quick trigger behavior reduced start-time lag, with reviewers saying events began quickly or included moments before...
  • Continuous recording capability is 4.4 vs 2.1. Continuous recording was the standout feature, widely praised as rare for battery cameras, but battery drain makes scheduling...
  • Dual-band (2.4/5GHz) performance is 4.1 vs 2.0. Dual-band Wi-Fi was generally appreciated, especially 5 GHz support, though one setup found the 2.4 GHz connection slow.
  • False alert filter effectiveness is 4.5 vs 3.4. False alert filtering was positive in the available evidence, with correct identification and comments about cutting back false...
Average score
Eufy S340 Solar Camera
4.0
Reolink Altas PT Ultra 4K Solar Security Camera
4.0
Optical zoom performance
Eufy S340 Solar Camera
4.6

Optical zoom is one of the strongest features, repeatedly helping reviewers see license plates, faces, and close-up detail.

Reolink Altas PT Ultra 4K Solar Security Camera
1.5

The camera lacks true optical zoom, and one reviewer treated that as a notable limitation.

Recording start-time lag
Eufy S340 Solar Camera
2.4

Battery-triggered recording can lag at the start, with reviewers noting missed first seconds or a desire for faster motion-triggered recording.

Reolink Altas PT Ultra 4K Solar Security Camera
4.7

Pre-recording and quick trigger behavior reduced start-time lag, with reviewers saying events began quickly or included moments before the trigger.

Continuous recording capability
Eufy S340 Solar Camera
2.1

Continuous recording is a notable limitation for the solar S340 because reviewers say it records clips rather than true 24/7 footage.

Reolink Altas PT Ultra 4K Solar Security Camera
4.4

Continuous recording was the standout feature, widely praised as rare for battery cameras, but battery drain makes scheduling or solar support important.

Dual-band (2.4/5GHz) performance
Eufy S340 Solar Camera
2.0

Dual-band performance scores poorly because the review evidence specifically notes that the camera does not support 5GHz Wi-Fi.

Reolink Altas PT Ultra 4K Solar Security Camera
4.1

Dual-band Wi-Fi was generally appreciated, especially 5 GHz support, though one setup found the 2.4 GHz connection slow.

Operating temperature range
Eufy S340 Solar Camera
4.4

The sole opinionated temperature-range evidence says the camera keeps performing reliably across hot and cold conditions.

Reolink Altas PT Ultra 4K Solar Security Camera
2.5

Operating temperature was a limitation in Tom's Guide because the rated cold range is narrower than some outdoor competitors.

Microphone sensitivity
Eufy S340 Solar Camera
4.5

Microphone pickup is praised for capturing outdoor sounds and being quite good during live use.

Reolink Altas PT Ultra 4K Solar Security Camera
3.1

Microphone reach was adequate for short conversations but not strong at longer distances.

False alert filter effectiveness
Eufy S340 Solar Camera
3.4

False-alert filtering is mixed: AI and zones can reduce false alarms, but cats, wind, and trigger-happy motion still cause problems.

Reolink Altas PT Ultra 4K Solar Security Camera
4.5

False alert filtering was positive in the available evidence, with correct identification and comments about cutting back false alerts.

Event recording reliability
Eufy S340 Solar Camera
3.2

Event recording evidence is mixed: an earlier review found missing footage, while a later update says full events now record properly.

Reolink Altas PT Ultra 4K Solar Security Camera
4.2

One review found clip playback quick and stutter-free, supporting reliable access to recorded events.

Notification management
Eufy S340 Solar Camera
2.6

Notification management is a recurring frustration, especially around vehicle alerts, geofencing, snoozing, and buried notification settings.

Reolink Altas PT Ultra 4K Solar Security Camera
3.6

Notification management was mixed: configuration options exist, but one reviewer noted the lack of rich notifications.

Power options (solar panel)
Eufy S340 Solar Camera
4.7

Solar power is the most consistently praised feature, with many reviewers saying it keeps the camera topped up or effectively eliminates charging.

Reolink Altas PT Ultra 4K Solar Security Camera
3.8

Solar support was useful and often recommended, but reviewers disagreed on whether the panel could keep up in cloudy weather or heavy recording modes.

Battery life
Eufy S340 Solar Camera
4.4

Battery life is strong when solar is available, but busy scenes and frequent motion can drain it faster.

Reolink Altas PT Ultra 4K Solar Security Camera
3.5

Battery life was the most divisive attribute: some reviewers saw excellent endurance, while heavy recording or pre-recording drained it quickly.

Mounting flexibility
Eufy S340 Solar Camera
4.4

Mounting flexibility is a strength, helped by wall/ceiling options, remote solar placement, and wire-free placement choices.

Reolink Altas PT Ultra 4K Solar Security Camera
3.6

Mounting flexibility was useful thanks to wall, ceiling, strap, and tree options, but strap security and length drew concerns.

Mobile app reliability
Eufy S340 Solar Camera
4.7

The mobile app is described as responsive and fast for playback when the system is configured well.

Reolink Altas PT Ultra 4K Solar Security Camera
3.9

The app was generally usable and capable, but reviewers also described it as needing polish, slightly bloated, or rough in places.

Durability
Eufy S340 Solar Camera
4.6

Durability is rated well where discussed, with reviewers citing sturdy construction and reliable outdoor performance.

Reolink Altas PT Ultra 4K Solar Security Camera
3.8

Durability was supported by one review that found the rugged plastic body durable, while still treating weather sealing as not unlimited.

Installation and Mounting
Eufy S340 Solar Camera
4.4

Installation is mostly considered easy and quick, though included screws and certain mounting situations can make it more frustrating.

Reolink Altas PT Ultra 4K Solar Security Camera
3.6

Installation ranged from quick and easy to bulky or hardware-sensitive; reviewers liked the process overall but noted DIY care and security issues.

Build quality
Eufy S340 Solar Camera
4.6

Build quality is praised across reviews as premium, stylish, solid, and well made.

Reolink Altas PT Ultra 4K Solar Security Camera
3.9

Build quality was mostly positive and described as solid or sturdy, but the large plastic body could feel bulky or slightly cheap.

Digital zoom clarity
Eufy S340 Solar Camera
3.1

Digital zoom is mixed: it can be useful, but several reviewers complain about cropping, lost resolution, or annoying zoom behavior.

Reolink Altas PT Ultra 4K Solar Security Camera
3.7

Digital zoom/readability was decent for nearby license plates or detailed scenes, but moving subjects and street-distance plates were less dependable.

Audio recording quality
Eufy S340 Solar Camera
4.0

Audio quality ranges from poor in one review to loud, clear, and practical in others, so the overall evidence is positive but not uniform.

Reolink Altas PT Ultra 4K Solar Security Camera
3.5

Audio quality was mixed: one review found talk loud and clear, while others reported lag, tinny sound, or only adequate conversation quality.

Frame rate
Eufy S340 Solar Camera
2.5

Frame rate is a weak spot: reviewers cite 15 fps limits that can cause blur, choppiness, or less smooth recordings.

Reolink Altas PT Ultra 4K Solar Security Camera
3.0

The 15 fps ceiling was the recurring drawback: reviewers found it usable, but several called out sluggish frames, motion blur, or a lack of smoother video.

Size and footprint
Eufy S340 Solar Camera
3.2

Size opinions are mixed: some find it compact enough, while others call it bulky or not discreet.

Reolink Altas PT Ultra 4K Solar Security Camera
2.8

The camera's size was a recurring caveat: reviewers called it large, chunky, or obtrusive, though some accepted the tradeoff for battery capacity.

Articulation range
Eufy S340 Solar Camera
3.9

Articulation range is useful for broad coverage, but one reviewer disputes the practical 360-degree claim.

Reolink Altas PT Ultra 4K Solar Security Camera
4.4

Articulation range was praised for wide pan/tilt coverage and the ability to cover a large area with one camera.

Low-light performance
Eufy S340 Solar Camera
3.6

Low-light performance is useful but mixed, with reviewers appreciating extra detail while noting motion blur or the need for more light in color mode.

Reolink Altas PT Ultra 4K Solar Security Camera
4.1

Low-light performance was generally strong with ambient light, but one test found readability dropped quickly without the floodlight.

Field of view
Eufy S340 Solar Camera
4.1

Coverage is generally broad, with reviewers valuing the wide lens and pan movement, though one notes the native view is narrower than true 360-degree coverage.

Reolink Altas PT Ultra 4K Solar Security Camera
4.5

Reviewers liked the broad practical coverage from pan/tilt movement, repeatedly noting few blind spots and useful all-around monitoring.

Weather resistance rating (IP code)
Eufy S340 Solar Camera
4.2

Weather resistance is viewed positively overall, though one reviewer warns that weatherproofing does not mean fully waterproof.

Reolink Altas PT Ultra 4K Solar Security Camera
3.8

Weather resistance was viewed as adequate for typical outdoor use, though one reviewer cautioned it is not fully submersible.

Included accessories
Eufy S340 Solar Camera
2.8

Included accessories are mixed because useful items like hooks or solar hardware are offset by complaints about cheap or stripped screws.

Reolink Altas PT Ultra 4K Solar Security Camera
3.2

Included accessories were mostly adequate, but reviewers noted missing microSD storage and weaker included screws.

System scalability
Eufy S340 Solar Camera
4.5

Scalability evidence is limited but positive, focused on HomeBase support for adding many cameras.

Reolink Altas PT Ultra 4K Solar Security Camera
4.1

Scalability was positive for Reolink owners because the Home Hub/Home Hub Pro can centralize storage for multiple cameras.

HomeKit integration
Eufy S340 Solar Camera
1.6

HomeKit support is a clear weakness, with multiple reviews explicitly noting that the S340 lacks it.

Reolink Altas PT Ultra 4K Solar Security Camera
2.0

HomeKit support was a clear weakness; reviewers explicitly listed its absence as a con.

Notification speed
Eufy S340 Solar Camera
4.1

Notification speed is usually fast, with some reviews reporting alerts within seconds, though another found a short delay after motion is sensed.

Reolink Altas PT Ultra 4K Solar Security Camera
4.5

Alerts were repeatedly described as accurate, instant, or decently quick across written and video reviews.

PTZ (pan/tilt/zoom) control responsiveness
Eufy S340 Solar Camera
4.2

Pan, tilt, and tracking controls are mostly smooth and responsive, but a few reviewers want faster motors or more responsive manual control.

Reolink Altas PT Ultra 4K Solar Security Camera
3.9

PTZ control was polarizing: several reviewers found motion smooth and easy, but others saw lag or wanted faster response.

Color accuracy
Eufy S340 Solar Camera
3.8

Color output is mostly liked, especially vivid daytime footage, but color night video can look dull or less smooth.

Reolink Altas PT Ultra 4K Solar Security Camera
4.2

Color looked rich and detailed in daylight, but bright lights could blow out night footage.

Detection features
Eufy S340 Solar Camera
4.5

Detection features are widely praised, especially AI tracking and smart detection, though some false alerts remain.

Reolink Altas PT Ultra 4K Solar Security Camera
4.2

Detection was usually praised for people/vehicle/animal recognition and auto-tracking, but tracking could struggle in low light or faster motion.

IFTTT/automation compatibility
Eufy S340 Solar Camera
1.7

IFTTT and automation compatibility are weak because reviewers repeatedly note missing IFTTT support and limited deeper automation integration.

Reolink Altas PT Ultra 4K Solar Security Camera
2.0

IFTTT compatibility was a clear weakness in the PCMag review, which stated it is not supported.

Detection range
Eufy S340 Solar Camera
3.7

Detection range earns mixed feedback: long-distance detection can work well, but side and rear blind spots limit coverage in some installations.

Reolink Altas PT Ultra 4K Solar Security Camera
4.0

One YouTube reviewer observed motion detection from about 40 feet, supporting useful real-world detection range.

Lens distortion correction
Eufy S340 Solar Camera
4.2

The only opinionated lens-distortion evidence describes the view as moderately wide and undistorted.

Reolink Altas PT Ultra 4K Solar Security Camera
4.5

Lens distortion was praised as minimal, with reviewers noting little distortion and avoidance of fisheye effects.

Power options (battery)
Eufy S340 Solar Camera
3.6

Battery power is convenient for avoiding hard wiring, but reviewers note tradeoffs such as no 24/7 recording, indoor charging, or battery drain from frequent motion.

Reolink Altas PT Ultra 4K Solar Security Camera
3.9

Battery-powered operation was valued for wire-free placement, although one reviewer wished a constant power option also existed.

Speaker volume
Eufy S340 Solar Camera
4.4

Speaker output is described as clear and loud enough for remote communication.

Reolink Altas PT Ultra 4K Solar Security Camera
4.1

Speaker and siren volume were generally strong, with reviewers describing loud output, though loudness was not always useful indoors.

Floodlight brightness
Eufy S340 Solar Camera
3.5

Lighting is useful but not floodlight-level on the S340; one comparison says the solar light is much dimmer than the wired floodlight.

Reolink Altas PT Ultra 4K Solar Security Camera
3.8

Spotlight brightness was generally strong, from reasonably bright to blindingly bright, but some reviewers noted limited range or possible washout.

Hub requirement
Eufy S340 Solar Camera
3.7

The hub is optional for basic use but can be costly; reviewers value the added AI and storage when HomeBase is used.

Reolink Altas PT Ultra 4K Solar Security Camera
4.0

The hub was treated as optional rather than mandatory, with one reviewer choosing it for centralized encrypted storage.

Cloud storage plan value
Eufy S340 Solar Camera
4.7

Reviewers strongly value the subscription-free approach and repeatedly contrast it favorably with cameras that require paid cloud plans.

Reolink Altas PT Ultra 4K Solar Security Camera
4.5

Cloud value skewed positive because most useful features do not require a subscription, though one reviewer disliked the cost of network storage.

Cable management
Eufy S340 Solar Camera
4.0

Cable management is mixed: remote solar placement is helpful, but the included cable length can be limiting.

Reolink Altas PT Ultra 4K Solar Security Camera
4.2

One reviewer liked the ability to tuck excess solar wiring neatly during installation.

Customizable motion zones
Eufy S340 Solar Camera
4.4

Motion zones are viewed as useful because they let users fine-tune alerts and reduce false positives.

Reolink Altas PT Ultra 4K Solar Security Camera
4.2

The PCMag review positively noted the ability to create detection zones and schedules from the app settings.

Night vision
Eufy S340 Solar Camera
4.3

Night vision is broadly well liked, especially infrared and detailed nighttime footage, though some color night results depend on lighting and spotlight use.

Reolink Altas PT Ultra 4K Solar Security Camera
4.4

Night vision was one of the most praised areas, especially ColorX full-color footage, though one reviewer found complete darkness without lights too weak.

On-device features
Eufy S340 Solar Camera
4.5

On-device features are treated positively through the broad smart-functionality set that works without a subscription.

Reolink Altas PT Ultra 4K Solar Security Camera
4.4

On-device features were praised as broad and functional, with reviewers noting that features worked well without cloud lock-in.

Streaming reliability
Eufy S340 Solar Camera
4.2

Live view and playback are generally quick, especially with HomeBase, though some reviewers report occasional delays loading the feed.

Reolink Altas PT Ultra 4K Solar Security Camera
4.4

Live streaming was mostly dependable and quick, with several reviewers reporting clear streams, quick loading, or trouble-free smart-display viewing.

Smart-home integration (Alexa, Google, Siri, HomeKit, Matter, Thread)
Eufy S340 Solar Camera
4.0

Alexa and Google support work well, but broader smart-home compatibility is limited by missing Apple, IFTTT, and other ecosystems.

Reolink Altas PT Ultra 4K Solar Security Camera
3.9

Smart-home support is useful for Alexa, Google, and Home Assistant, but reviewers repeatedly noted the lack of Apple HomeKit.

Spotlight features
Eufy S340 Solar Camera
3.6

Spotlight feedback is mixed: it helps nighttime footage, but color-night use can drain battery.

Reolink Altas PT Ultra 4K Solar Security Camera
3.7

Spotlight features were useful and configurable, though reviewers noted washout risk or wished for more motion-specific behavior.

Smart home accessory compatibility
Eufy S340 Solar Camera
4.6

Accessory compatibility is positive where tested, including successful Alexa routines with smart lights.

Reolink Altas PT Ultra 4K Solar Security Camera
4.7

Accessory compatibility was strong where tested, including Alexa routines and Home Assistant entities for automation.

Connectivity options
Eufy S340 Solar Camera
4.2

Connectivity works well when Wi-Fi is strong, but reviewers caution that outdoor placement depends on signal quality.

Reolink Altas PT Ultra 4K Solar Security Camera
4.3

Connectivity options were broad, with reviewers appreciating Wi-Fi flexibility and, in one review, off-grid cellular capability.

App controls and settings
Eufy S340 Solar Camera
4.1

The app is feature-rich and often intuitive, but some settings are quirky, buried, or imperfect.

Reolink Altas PT Ultra 4K Solar Security Camera
4.0

The app exposes many useful controls and settings, but reviewers split between easy-to-use praise and complaints about clutter or rough edges.

On-device processing (AI)
Eufy S340 Solar Camera
4.5

On-device and HomeBase AI are generally praised for detection and tracking, though one review found only fair performance.

Reolink Altas PT Ultra 4K Solar Security Camera
4.5

On-device AI/detection received positive marks for correctly identifying alerts and reducing false positives.

Video resolution and detail
Eufy S340 Solar Camera
4.6

Reviewers consistently praise the S340's 3K video as sharp, clear, detailed, and strong enough for identifying people, cars, and other outdoor activity.

Reolink Altas PT Ultra 4K Solar Security Camera
4.6

Reviewers consistently praised the 4K feed as crisp, sharp, and detailed, with only one YouTube test showing more limited readability at longer distances.

Price value
Eufy S340 Solar Camera
4.2

Value is positive overall despite a higher upfront price, because reviewers weigh it against solar power, local storage, and no subscriptions.

Reolink Altas PT Ultra 4K Solar Security Camera
4.2

Most reviewers considered the camera a strong value for its feature set, despite several noting it is not cheap.

Local storage option convenience
Eufy S340 Solar Camera
4.2

Local storage and no-fee recording are major strengths, but several reviewers flag the 8GB onboard limit or camera theft risk as caveats.

Reolink Altas PT Ultra 4K Solar Security Camera
4.3

Local storage was a major strength, with reviewers appreciating microSD/NVR/Home Hub options and the ability to avoid mandatory cloud fees.

Pre-event recording length
Eufy S340 Solar Camera
4.5

Pre-event capture is a plus in the review that mentions it, showing a second or two before motion begins.

Reolink Altas PT Ultra 4K Solar Security Camera
4.5

The 10-second pre-event recording was widely valued because it helps capture the beginning of motion events, though it increases power use.

Customer support responsiveness
Eufy S340 Solar CameraNo score yet
Reolink Altas PT Ultra 4K Solar Security Camera
2.0

Customer support was criticized in one review after the reviewer felt Reolink blamed settings or user conditions for battery drain.

Dual-camera design
Eufy S340 Solar Camera
4.7

The dual-camera design is a standout strength, giving reviewers both wide context and close-up detail.

Reolink Altas PT Ultra 4K Solar Security CameraNo score yet
Dual-stream recording
Eufy S340 Solar Camera
2.4

Dual-stream or dual-view recording is a weakness because reviewers say it reduces image quality and is not worth using.

Reolink Altas PT Ultra 4K Solar Security CameraNo score yet
Echo/noise cancellation
Eufy S340 Solar CameraNo score yet
Reolink Altas PT Ultra 4K Solar Security Camera
2.5

One reviewer specifically criticized echo and tinny speaker output, suggesting weak echo handling.

PoE
Eufy S340 Solar CameraNo score yet
Reolink Altas PT Ultra 4K Solar Security Camera
2.5

PoE-style reliability was a tradeoff; reviewers said the camera approaches wired-camera flexibility but does not match PoE responsiveness.

Privacy zone masking ease
Eufy S340 Solar Camera
4.2

Privacy masking is positively described through blackout/privacy zones that let users block sensitive areas.

Reolink Altas PT Ultra 4K Solar Security CameraNo score yet
Smart search accuracy
Eufy S340 Solar Camera
2.3

Smart search earns a low score from the one reviewer who wanted stronger face and filter search capabilities.

Reolink Altas PT Ultra 4K Solar Security CameraNo score yet
wired
Eufy S340 Solar CameraNo score yet
Reolink Altas PT Ultra 4K Solar Security Camera
3.2

Wired power was mixed: reviewers liked wire-free use, but several noted the lack of a true wired option as a drawback.