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Wearable comparison

Xiaomi Smart Band 9 vs CMF Watch 3 Pro

Compare battery life, health tracking, display and fit.

Compared products
01Selected
Xiaomi Smart Band 9

Xiaomi Smart Band 9

  • Screen: 192 × 490 pixels.
  • 233 mAh battery capacity.
  • 5 ATM.
  • Weighs 15.8 g.
  • Sensors: accelerometer.
KSh 6,550Out 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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2 of 4 products

Our quick verdict

The Xiaomi Smart Band 9, a fitness band with a small screen, lasts longer between charges (21 days typical) and has faster recharging (1 hour) and a larger 1.62-inch screen, while the CMF Watch 3 Pro, a smartwatch with a 1.43-inch OLED screen, has a much bigger battery (350 mAh) and a sharper screen and takes calls from the wrist.

Display

Xiaomi Smart Band 9
192 × 490 pixels
CMF Watch 3 Pro
466 × 466 pixels; 326 ppi

Capacity

Xiaomi Smart Band 9
233 mAh battery capacity
CMF Watch 3 Pro
350 mAh battery capacity

Portability

Xiaomi Smart Band 9
15.8 g
CMF Watch 3 Pro
51.9 g

Water resistance

Xiaomi Smart Band 9
5 ATM
CMF Watch 3 Pro
IP68 water and dust resistance

Sleep tracking

Xiaomi Smart Band 9
Sleep monitoring
CMF Watch 3 Pro
Enhanced sleep tracking

Key differences

The main differences to help you choose.

Xiaomi Smart Band 9

  • Longer battery life: up to 21 days in typical use (vs 13).
  • Larger 1.62-inch screen (vs 1.43-inch).
  • Recharges faster: 1 hour (vs 1.65 hours).
  • Lighter: 15.8 g (vs 51.9 g).
  • Charging: Magnetic charging.

CMF Watch 3 Pro

  • Bigger battery: 350 mAh (vs 233 mAh).
  • Higher screen resolution: 466 × 466 (vs 192 × 490).
  • Takes calls from the wrist over Bluetooth.
  • 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.

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6 priorities selected.
How each product answers the selected priorities
PriorityXiaomi Smart Band 9CMF Watch 3 Pro
Battery life233 mAh battery350 mAh battery
Portability15.8 g51.9 g
Display1.62-inch OLED display, 60 Hz1.43-inch OLED display, 326 ppi
Water resistance5 ATMIP68 water and dust resistance
Sleep trackingSleep monitoringEnhanced sleep tracking
ChargingMagnetic chargingCharging cable

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationXiaomi Smart Band 9CMF Watch 3 Pro
Display1.62-inch AMOLED touch display1.43-inch AMOLED
Screen resolution192 × 490 pixels466 × 466 pixels; 326 ppi
Display featuresUp to 1,200-nit peak brightness; automatic brightness; 60Hz refresh rate varies by interface60 fps; always-on display
Display protection—Glass

Connectivity

Connectivity specifications comparison
SpecificationXiaomi Smart Band 9CMF Watch 3 Pro
Network / cellular—No cellular connectivity
SIM / eSIM—No
Wi-Fi—No
Bluetooth—Bluetooth 5.3
NFC—No
Positioning / GNSS—Dual-band L1 + L5; GPS; GLONASS; Galileo; QZSS; BeiDou

Identity & design

Identity & design specifications comparison
SpecificationXiaomi Smart Band 9CMF Watch 3 Pro
BrandXiaomiCMF
ModelXiaomi Smart Band 9CMF Watch 3 Pro
Dimensions46.53 × 21.63 × 10.95 mm, excluding strap and protrusionsWith strap: 258 × 47 mm; depth 14.4 mm Dark Grey/Light Green, 15.2 mm Light Grey, 14.5 mm Orange
Weight15.8 g without strapDark Grey/Light Green: 51.9 g; Light Grey: 51.0 g; Orange: 52.4 g
Build materialsMetallic frameMetal body; liquid-silicone strap
Wrist size135–210 mm—
Strap / bandTPURemovable liquid-silicone strap
Controls / buttonsTouchscreen interfaceFunctional crown, gesture shortcuts, and touchscreen
Announced—2025, July 22

Health & fitness

Health & fitness specifications comparison
SpecificationXiaomi Smart Band 9CMF Watch 3 Pro
SensorsAccelerometer; gyroscope; optical heart-rate sensor; ambient-light sensorAccelerometer; gyroscope; ambient light; heart-rate and SpO₂ sensor
Health & wellness featuresHeart rate; blood oxygen; stress; menstrual-cycle records; personal wellness reference onlyAutomatic and 24-hour heart rate; resting and exercise heart rate; alerts; Active Score; SpO₂ and alerts; stress; cycle tracking
Sleep trackingSleep monitoring; REM and other advanced monitoring require enabling relevant settingsEnhanced sleep tracking
Sports / workout modes150+ sports modes; ten on-wrist running courses131 sports modes

Smart features

Smart features specifications comparison
SpecificationXiaomi Smart Band 9CMF Watch 3 Pro
Smart features / notificationsCall and notification reminders through paired phone; selected features require Mi Fitness running in background—
Watch facesMore than 200 watch faces through Mi Fitness; supported personalised photo faces—

Battery & durability

Battery & durability specifications comparison
SpecificationXiaomi Smart Band 9CMF Watch 3 Pro
Battery capacity233 mAh350 mAh Li-ion
Battery lifeUp to 21 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
SpecificationXiaomi Smart Band 9CMF Watch 3 Pro
Phone compatibilityAndroid 8.0 or later; iOS 12.0 or laterAndroid 6 or later; iOS 13 or later
Companion appMi FitnessNothing X
ColorsMidnight Black; Glacier Silver; Mystic Rose; Arctic Blue; Titan GrayLight Green; Orange; Light Grey; Dark Grey

Additional specifications

Additional specifications specifications comparison
SpecificationXiaomi Smart Band 9CMF Watch 3 Pro
component variantsStandard TPU-strap edition; optional straps and running clip sold separately—
motorLinear motor—
strap materialTPU—
clipOptional Xiaomi Smart Band 9 Running Clip, sold separately—
secondary battery lifeUp to nine days with AOD; 6.6 days heavy use under manufacturer test conditions—
charging timeApproximately 1 hour99 minutes
movement sensorsAccelerometer and gyroscope—
packing listBand; magnetic charging cable; user manualWatch; charging cable; user guide; safety and warranty information
Case material—Metal
Pixels per inch—326 ppi
Peak brightness—650 nits typical; up to 670 nits
Smart recognition—7 activities
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

Audio & communication

Audio & communication specifications comparison
SpecificationXiaomi Smart Band 9CMF Watch 3 Pro
Speaker—Supported
Microphone—Supported
Calling—Bluetooth calling

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationXiaomi Smart Band 9CMF Watch 3 Pro
Training & outdoor features—8–16 week custom running coach, VO2 max, heart-rate zones, training load, recovery guidance, dual-band GPS and 3D warm-up/stretching guides

Similarities

  • Both have OLED displays.
  • Both have similar screen sizes (1.62 and 1.43 inches).

In summary

Get the Xiaomi Smart Band 9 if you want longer battery life and faster recharging, or the CMF Watch 3 Pro if you would rather have a much bigger battery and a sharper screen.

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