Best Amazfit Smartwatches for heart rate accuracy

heart rate accuracy Decision Dashboard

Best for heart rate accuracy

Amazfit Balance 2

4.4 attribute score

Highest scored product for this attribute based on supporting review evidence.

Safest pick

Amazfit Balance 3

4.3 attribute score

Balances the attribute score, supporting reviews, and overall product strength.

Most evidence

Amazfit T-Rex 3

14 supporting reviews

Has the broadest review evidence for this attribute.

Best overall product

Amazfit Active 3 Premium

4.3 overall score

Strongest overall product among items with scored evidence for this attribute.

#1 Amazfit Balance 2
4.4

Heart-rate accuracy was strong in most tests, especially running and general exercise, but it was less convincing in one weightlifting-focused scientific test.

Pros: battery life, value for money

Cons: third-party app support, onboard music storage

#2 Amazfit Balance 3
4.3

Heart-rate tracking was excellent for steady running and often closely matched chest straps or premium watches. Results were more mixed during rapid intensity changes and one reference test, so external...

Pros: battery life, brightness

Cons: fit, third-party app support

#3 Amazfit Cheetah 2 Pro
4.0

Heart rate accuracy was good for steady efforts and often close to straps or Garmin, but several reviewers still recommended a chest strap for intervals, cycling or precision work.

Pros: GPS accuracy, battery life

Cons: band quality, smartwatch features

#4 Amazfit Cheetah 2 Ultra
4.0

Heart-rate evidence is mostly positive, with excellent road, trail, gym, and cycling results, though reviewers noted occasional interval or anomaly problems.

Pros: battery life, value for money

Cons: reliability

#5 Amazfit Bip 6
3.9

Heart-rate accuracy was generally solid for running and steady workouts, but reviewers reported inconsistency during spikes, strength work, or cycling.

Pros: value for money, battery life

Cons: voice assistant quality, sleep tracking accuracy

#6 Amazfit T-Rex 3 Pro
3.7

Heart rate accuracy is mixed-to-good. Many reviewers found it solid, close or pleasantly surprising, but others saw sketchy readings, cadence lock, rough-ride drift or weaker accuracy than Garmin.

Pros: battery life, value for money

Cons: mapping and navigation, user interface

#7 Amazfit Active 2
3.6

Heart-rate results ranged from excellent parity in runs to weak performance during harder workouts, intervals, or some reviewer comparisons.

Pros: value for money, battery life

Cons: band quality, button controls

#8 Amazfit GTR Mini
3.5

Heart rate accuracy was mixed, with one reviewer seeing elevated readings while others said results came close or seemed very accurate.

Pros: battery life, workout tracking variety

Cons: call handling, smartphone notifications

#9 Amazfit Active 3 Premium
3.4

Heart-rate evidence is mixed: one reviewer saw suspicious cadence-like readings and another first run was imperfect, while later testing and a German review found generally acceptable to very strong results.

Pros: value for money, battery life

Cons: heart rate accuracy, third-party app support

#10 Amazfit Bip 5
3.3

Heart-rate accuracy is mixed: one review found weak workout heart-rate performance, while others found small differences or decent active readings.

Pros: value for money, battery life

Cons: smartwatch features, app ecosystem

#11 Amazfit T-Rex Ultra 2
3.3

Heart-rate evidence was split: some reviewers found it accurate or improved, while testing-heavy reviews reported cadence lock, cold-weather struggles, and poor performance during running or lifting.

Pros: battery life, value for money

Cons: heart rate accuracy, comfort

#12 Amazfit Active Max
3.3

Heart-rate accuracy was mixed: steady running and everyday readings often looked reliable, but interval work, weight training, cold-weather runs, and outdoor cycling exposed lag or spikes.

Pros: battery life, value for money

Cons: companion app quality, heart rate accuracy

#13 Amazfit T-Rex 3
3.2

Heart rate accuracy was mixed: steady running and indoor cycling often worked well, while outdoor cycling and intensity changes were weaker.

Pros: value for money, mapping and navigation

Cons: heart rate accuracy, recovery insights