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Wearable comparison

Xiaomi Smart Band 9 vs Redmi Watch 3

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
Redmi Watch 3

Redmi Watch 3

  • 37 g.
  • Screen: 390 × 450 pixels.
  • Bluetooth 5.2 connection.
  • 289 mAh battery capacity.
  • 5ATM.
KSh 10,500Out of Stock

Add to comparison

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2 of 4 products

Our quick verdict

The Redmi Watch 3, a smartwatch with a 1.75-inch OLED screen, has a bigger battery (289 mAh) and a sharper screen and is slimmer, while the Xiaomi Smart Band 9, a fitness band with a small screen, lasts longer between charges (21 days typical) and is lighter to wear all day.

Display

Xiaomi Smart Band 9
192 × 490 pixels
Redmi Watch 3
390 × 450 pixels

Capacity

Xiaomi Smart Band 9
233 mAh battery capacity
Redmi Watch 3
289 mAh battery capacity

Portability

Xiaomi Smart Band 9
15.8 g
Redmi Watch 3
37 g

Water resistance

Xiaomi Smart Band 9
5 ATM
Redmi Watch 3
5ATM

Sensors

Xiaomi Smart Band 9
Accelerometer, gyroscope
Redmi Watch 3
Heart-rate sensor with blood-oxygen sensor

Key differences

The main differences to help you choose.

Xiaomi Smart Band 9

  • Longer battery life: up to 21 days in typical use (vs 12).
  • Lighter: 15.8 g (vs 37 g).

Redmi Watch 3

  • Bigger battery: 289 mAh (vs 233 mAh).
  • Higher screen resolution: 390 × 450 (vs 192 × 490).
  • Slimmer: 9.99 mm thick (vs 10.95 mm).
  • Takes calls from the wrist over Bluetooth.
  • Slightly larger 1.75-inch screen (vs 1.62-inch).

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.

More topicsFewer topics
6 priorities selected.
How each product answers the selected priorities
PriorityXiaomi Smart Band 9Redmi Watch 3
Battery life233 mAh battery289 mAh battery
Portability15.8 g37 g
Display1.62-inch OLED display, 60 Hz1.75-inch OLED display
Water resistance5 ATM5ATM
SensorsAccelerometer, gyroscopeHeart-rate sensor with blood-oxygen sensor
ChargingMagnetic chargingMagnetic charging cable

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationXiaomi Smart Band 9Redmi Watch 3
Display1.62-inch AMOLED touch display1.75-inch AMOLED touchscreen
Screen resolution192 × 490 pixels390 × 450 pixels
Display featuresUp to 1,200-nit peak brightness; automatic brightness; 60Hz refresh rate varies by interfaceUp to 600nits adjustable brightness; 70% screen-to-body ratio; 200+ watch faces including supported always-on options
Display protection—Glass with anti-fingerprint coating

Connectivity

Connectivity specifications comparison
SpecificationXiaomi Smart Band 9Redmi Watch 3
Bluetooth—Bluetooth 5.2
Positioning / GNSS—Independent BeiDou, GPS, GLONASS, Galileo and QZSS

Identity & design

Identity & design specifications comparison
SpecificationXiaomi Smart Band 9Redmi Watch 3
BrandXiaomiRedmi
ModelXiaomi Smart Band 944176
Dimensions46.53 × 21.63 × 10.95 mm, excluding strap and protrusions42.58 × 36.56 × 9.99mm; strap and protrusions excluded
Weight15.8 g without strap37g with included strap
Build materialsMetallic frameMetallic-finish middle frame; display glass with anti-fingerprint coating
Wrist size135–210 mm135–200mm
Strap / bandTPUBlack: TPU; Ivory: silicone; position-memory loop
Controls / buttonsTouchscreen interfaceTouchscreen and side button

Health & fitness

Health & fitness specifications comparison
SpecificationXiaomi Smart Band 9Redmi Watch 3
SensorsAccelerometer; gyroscope; optical heart-rate sensor; ambient-light sensorHeart-rate sensor with blood-oxygen sensor; accelerometer; gyroscope; geomagnetic sensor
Health & wellness featuresHeart rate; blood oxygen; stress; menstrual-cycle records; personal wellness reference onlyHeart rate, blood oxygen, stress, breathing and supported menstrual-cycle records; personal wellness reference
Sleep trackingSleep monitoring; REM and other advanced monitoring require enabling relevant settingsDeep, light and REM sleep-stage monitoring
Sports / workout modes150+ sports modes; ten on-wrist running courses120+ workout modes including outdoor running, cycling, hiking and swimming

Smart features

Smart features specifications comparison
SpecificationXiaomi Smart Band 9Redmi Watch 3
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 9Redmi Watch 3
Battery capacity233 mAh289mAh
Battery lifeUp to 21 days typical useUp to 12 days typical use or 7 days heavy use under manufacturer tests; actual life varies
ChargingMagnetic chargingMagnetic charging cable
Water resistance5 ATM5ATM; appropriate pool and shallow-water use; avoid hot showers, saunas, diving and direct high-speed water impacts; resistance may decline

Compatibility

Compatibility specifications comparison
SpecificationXiaomi Smart Band 9Redmi Watch 3
Phone compatibilityAndroid 8.0 or later; iOS 12.0 or laterAndroid 6.0 or above; iOS 12 or above
Companion appMi FitnessMi Fitness
ColorsMidnight Black; Glacier Silver; Mystic Rose; Arctic Blue; Titan GrayBlack; Ivory

Additional specifications

Additional specifications specifications comparison
SpecificationXiaomi Smart Band 9Redmi Watch 3
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 hour—
movement sensorsAccelerometer and gyroscopeAccelerometer, gyroscope and geomagnetic sensor
packing listBand; magnetic charging cable; user manualWatch, magnetic charging cable and user manual including warranty notice
Watch weight without strap—37g with included strap
Display material—Glass with anti-fingerprint coating
Peak brightness—Up to 600nits, adjustable
Cover / touchscreen—Supported
Heavy-use battery life—Up to 7 days under manufacturer heavy-use test
Bluetooth and Wi-Fi—Bluetooth 5.2; phone pairing through Mi Fitness
Microphone and speaker—Built-in speaker and microphone
Sports coach—10 built-in running courses

Audio & communication

Audio & communication specifications comparison
SpecificationXiaomi Smart Band 9Redmi Watch 3
Speaker—Supported
Microphone—Supported
Calling—Bluetooth voice calls through a connected phone; third-party app voice calls not supported

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationXiaomi Smart Band 9Redmi Watch 3
Training & outdoor features—10 built-in running courses and independent five-system GNSS
Safety & emergency features—Triple-press side button can call configured emergency contact; prior Mi Fitness setup and connected phone required

Similarities

  • Both are water resistant to 50 m.
  • Both have OLED displays.
  • Both have similar screen sizes (1.62 and 1.75 inches).
  • Same companion app: Mi Fitness.

In summary

Get the Redmi Watch 3 if you want a bigger battery and a sharper screen, or the Xiaomi Smart Band 9 if you would rather have longer battery life and a lighter band for all-day wear.

Back to compared products ↑

In-stock alternatives

Xiaomi Smart Band 8For Xiaomi Smart Band 9Xiaomi Smart Band 8View product ↗Xiaomi Smart Band 7 (Global)For Xiaomi Smart Band 9Xiaomi Smart Band 7 (Global)View product ↗Oraimo Watch ES OSW-41For Redmi Watch 3Oraimo Watch ES OSW-41View product ↗CMF Watch 3 ProFor Redmi Watch 3CMF Watch 3 ProView product ↗

Related comparisons

Xiaomi Smart Band 9Xiaomi Smart Band 9 ActiveXiaomi Smart Band 9CMF Watch 3 ProXiaomi Smart Band 9AmazFit Pop 3RXiaomi Smart Band 9Infinix XWatch N5 ProXiaomi Smart Band 9Infinix GT Watch 5 ProOraimo Watch 2 ProXiaomi Smart Band 9Oraimo Watch ER OSW-42Xiaomi Smart Band 9Xiaomi Smart Band 9Huawei Band 10Xiaomi Smart Band 9Xiaomi Smart Band 7 (Global)Xiaomi Smart Band 8Xiaomi Smart Band 9

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