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Wearable comparison

AmazFit Active vs CMF Watch 3 Pro

Compare battery life, health tracking, display and fit.

Compared products
01Selected
AmazFit Active

AmazFit Active

  • Screen: 390 × 450 pixels; 341 ppi.
  • Runs Zepp OS 4.
  • 300 mAh battery capacity.
  • Up to 250 MB music storage.
  • Bluetooth 5.2.
KSh 12,500Out of Stock
02
CMF Watch 3 Pro

CMF Watch 3 Pro

  • Screen: 466 × 466 pixels; 326 ppi.
  • Bluetooth 5.3 connection.
  • 350 mAh battery capacity.
  • IP68 rating.
  • Weighs 51.9 g.
KSh 11,500In Stock
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Fitbit Inspire 3KSh 14,000
Oraimo Watch ES OSW-41KSh 10,500
AmazFit Active EdgeKSh 17,000
OnePlus Nord WatchKSh 11,000
Redmi Watch 3KSh 10,500
Amazfit Bip 6KSh 14,500
Amazfit Active 2 RoundKSh 16,500
2 of 4 products

Our quick verdict

The AmazFit Active gives daily readiness scores, is lighter to wear all day and has a larger 1.75-inch screen, while the CMF Watch 3 Pro has a bigger battery (350 mAh).

Display

AmazFit Active
390 × 450 pixels; 341 ppi
CMF Watch 3 Pro
466 × 466 pixels; 326 ppi

Capacity

AmazFit Active
300 mAh battery capacity
CMF Watch 3 Pro
350 mAh battery capacity

Portability

AmazFit Active
35.7 g
CMF Watch 3 Pro
51.9 g

Software

AmazFit Active
Zepp OS 4
CMF Watch 3 Pro
Nothing X

Connections

AmazFit Active
Bluetooth 5.2
CMF Watch 3 Pro
Bluetooth 5.3

Key differences

The main differences to help you choose.

AmazFit Active

  • Larger 1.75-inch screen (vs 1.43-inch).
  • Lighter: 35.7 g (vs 51.9 g).
  • Daily readiness scores.
  • Syncs with third-party apps such as Strava and Apple Health.
  • Charging: Magnetic charging.

CMF Watch 3 Pro

  • Bigger battery: 350 mAh (vs 300 mAh).
  • Charging: Charging cable.

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

6 priorities selected.
How each product answers the selected priorities
PriorityAmazFit ActiveCMF Watch 3 Pro
Battery life300 mAh battery350 mAh battery
Portability35.7 g51.9 g
Display1.75-inch OLED display, 341 ppi1.43-inch OLED display, 326 ppi
SoftwareZepp OS 4Nothing X
ConnectionsBluetooth 5.2Bluetooth 5.3
Water resistance5 ATMIP68 water and dust resistance

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationAmazFit ActiveCMF Watch 3 Pro
Display1.75-inch AMOLED; always-on display1.43-inch AMOLED
Screen resolution390 × 450 pixels; 341 ppi466 × 466 pixels; 326 ppi
Display protectionTempered glass; anti-fingerprint coatingGlass
Display features—60 fps; always-on display

Connectivity

Connectivity specifications comparison
SpecificationAmazFit ActiveCMF Watch 3 Pro
BluetoothBluetooth 5.2 BLEBluetooth 5.3
Positioning / GNSSGPS; GLONASS; Galileo; BeiDou; QZSS; circularly polarized antennaDual-band L1 + L5; GPS; GLONASS; Galileo; QZSS; BeiDou
Network / cellular—No cellular connectivity
SIM / eSIM—No
Wi-Fi—No
NFC—No

Identity & design

Identity & design specifications comparison
SpecificationAmazFit ActiveCMF Watch 3 Pro
BrandAmazfitCMF
ModelAmazFit ActiveCMF Watch 3 Pro
DimensionsApproximately 42 × 36 × 10.7 mm without heart-rate sensor baseWith strap: 258 × 47 mm; depth 14.4 mm Dark Grey/Light Green, 15.2 mm Light Grey, 14.5 mm Orange
WeightSilicone edition: 24 g without band, 35.7 g with band; vegan leather edition: 27 g without band, 35.5 g with bandDark Grey/Light Green: 51.9 g; Light Grey: 51.0 g; Orange: 52.4 g
Build materialsSilicone edition: aluminum alloy and plastic; vegan leather edition: stainless steel and plasticMetal body; liquid-silicone strap
Wrist sizeSilicone: 135–190 mm; vegan leather: 135–200 mm—
Strap / band20 mm silicone or vegan leather; pin buckleRemovable liquid-silicone strap
Controls / buttons1 button; touchscreenFunctional crown, gesture shortcuts, and touchscreen
Announced—2025, July 22

Performance & software

Performance & software specifications comparison
SpecificationAmazFit ActiveCMF Watch 3 Pro
StorageUp to 250 MB music storage—
Operating systemZepp OS 4—

Audio & communication

Audio & communication specifications comparison
SpecificationAmazFit ActiveCMF Watch 3 Pro
SpeakerSupportedSupported
MicrophoneSupportedSupported
CallingBluetooth callingBluetooth calling

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationAmazFit ActiveCMF Watch 3 Pro
SensorsBioTracker PPG; accelerometer; geomagnetic sensor; temperatureAccelerometer; gyroscope; ambient light; heart-rate and SpO₂ sensor
Health & wellness features24-hour heart rate, SpO₂ and stress; one-tap measurement; PAI; breathing exercises; high and low heart-rate alerts; low SpO₂ alerts; menstrual-cycle tracking; readiness scoreAutomatic and 24-hour heart rate; resting and exercise heart rate; alerts; Active Score; SpO₂ and alerts; stress; cycle tracking
Sleep trackingSleep stages including REM; naps; sleep schedule; sleep breathing quality; sleep scoreEnhanced sleep tracking
Sports / workout modes100+ sports modes131 sports modes
Training & outdoor featuresZepp Coach; PeakBeats; track running; trajectory correction; virtual pacer; training templates; interval training8–16 week custom running coach, VO2 max, heart-rate zones, training load, recovery guidance, dual-band GPS and 3D warm-up/stretching guides

Battery & durability

Battery & durability specifications comparison
SpecificationAmazFit ActiveCMF Watch 3 Pro
Battery capacity300 mAh350 mAh Li-ion
Battery lifeUp to 14 days typical use13 days typical; 10 days heavy; 4.5 days heavy with AOD; 60 days power saver; 17.9 hours Bluetooth calls; 17.2 hours GPS
ChargingMagnetic chargingCharging cable
Water resistance5 ATMIP68

Compatibility

Compatibility specifications comparison
SpecificationAmazFit ActiveCMF Watch 3 Pro
Phone compatibilityAndroid 7 or later; iOS 14 or laterAndroid 6 or later; iOS 13 or later
Companion appZeppNothing X
ColorsMidnight Black; Petal Pink; Lavender PurpleLight Green; Orange; Light Grey; Dark Grey

Additional specifications

Additional specifications specifications comparison
SpecificationAmazFit ActiveCMF Watch 3 Pro
Case materialAluminum alloy or stainless steel; plasticMetal
Pixels per inch341 ppi326 ppi
Charging timeApproximately 2 hours99 minutes
Packing listWatch with standard strap; magnetic charger; instruction manualWatch; charging cable; user guide; safety and warranty information
Smart recognition7 sports movements7 activities
Third-party fitness appsadidas Running; Strava; komoot; Relive; Google Fit; Apple Health—
Peak brightness—650 nits typical; up to 670 nits
Release status—Available. Released 2025, July 22
Model numbers—D399
Card slot—No
Camera—No
3.5 mm headphone jack—No
USB—No
Radio—No

Similarities

  • Both take calls over Bluetooth.
  • Both have OLED displays.
  • Both connect over Bluetooth.
  • Both use 24-hour (health & wellness features).
  • Both have a speaker.
  • Both have a microphone.

In summary

For most buyers the AmazFit Active is the better buy; the CMF Watch 3 Pro makes sense if you want a bigger battery.

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In-stock alternatives

OnePlus Nord WatchFor AmazFit ActiveOnePlus Nord WatchView product ↗Oraimo Watch ES OSW-41For AmazFit ActiveOraimo Watch ES OSW-41View product ↗Huawei Band 11 ProFor CMF Watch 3 ProHuawei Band 11 ProView product ↗Fitbit Inspire 3For CMF Watch 3 ProFitbit Inspire 3View product ↗

Related comparisons

AmazFit ActiveFitbit Inspire 3AmazFit ActiveOraimo Watch ES OSW-41AmazFit ActiveAmazFit Active EdgeOnePlus Nord WatchAmazFit ActiveAmazFit ActiveRedmi Watch 3AmazFit ActiveAmazfit Bip 6AmazFit ActiveAmazfit Active 2 RoundAmazFit ActiveHuawei Band 11 ProAmazFit ActiveXiaomi Smart Band 10 Ceramic Edition
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