Redmi Band 4 vs Xiaomi Smart Band 11 specs comparison
The Xiaomi Smart Band 11 is easily the better fitness tracker, provided you're happy to spend a bit more. It has a larger, much brighter AMOLED display, over 150 sports modes, sleep HRV tracking and a few other extras missing from the Redmi. The Band 4 covers the basics well enough, and its lower price is its biggest selling point.
Full comparison
The full record
74 specifications across 6 areas, with 23 genuine differences.
1. Design & display Xiaomi Smart Band 11
Fact
Redmi Band 4
Xiaomi Smart Band 11
Release date
2026-10-20
2026-09
Physical size
43.5 × 25.8 × 10.2 mm
9.99 mm thick
Weight
18 g without strap
15.58 g
Material
Metal-look middle frame; textured strap
Ceramic Edition and Unibody All-metal Edition also available
Water resistance
5 ATM
5 ATM
Display type
TFT LCD
AMOLED, narrow-edge quadrilateral display (symetrical 2m bezels)
Display size
1.47 inch
1.72 inch
Display resolution
172 x 320 pixels, 247 ppi
212 x 520 pixels
Display brightness
Up to 450 nits
Up to 2,000 nits
2. Battery & charging No clear edge
Fact
Redmi Band 4
Xiaomi Smart Band 11
Battery
Rechargeable battery; 300 mAh
Rechargeable battery; 233 mAh
Battery life
Up to 21 days (light use); around 8 days (regular monitoring)
up to 21 days
Charging
Magnetic charging
Magnetic charging
Charging time
Under 2 hours
About 60 minutes
3. Sensors & positioning Xiaomi Smart Band 11
Fact
Redmi Band 4
Xiaomi Smart Band 11
GNSS type
None
Connected GPS
GPS
No
Connected GPS (phone required)
GALILEO
No
No
GLONASS
No
No
QZSS
No
No
Beidou
No
No
Accelerometer
Yes
Yes
Gyroscope
Yes
Yes
Barometric altimeter
No
No
Compass
No
Yes
Geomagnetic
No
Yes
Ambient light sensor
No
Yes
Optical heart rate
Yes
Yes (upgraded high-precision sensor)
Electrical heart rate
No
No
SpO2
Yes
Yes
Temperature
No
No
Galvanic skin response
No
No
Microphone
No
No
Speakers
No
No
Vibration motor
Yes
Yes
4. Health & activity Xiaomi Smart Band 11
Fact
Redmi Band 4
Xiaomi Smart Band 11
Steps
Yes
Yes
Distance
Yes
Yes
Calories burned
Yes
Yes
Floors
No
No
Sports tracking
Yes (50 sports modes)
Yes (150+ sports modes)
Sleep
Yes
Yes
Heart rate
Yes
Yes
HRV
No
Yes (sleep HRV)
Stress
Yes
Yes
Blood oxygen
Yes
Yes
Respiration rate
No
Yes (average breathing rate during sleep)
Skin temperature
No
No
ECG
No
No
Blood pressure
No
No
Body composition
No
No
Glucose
No
No
Hydration level
No
No
UV exposure
No
No
Calorie intake
No
No
Hyperglycemia risk assessment
No
No
Arterial stiffness detection
No
No
Pulse wave arrhythmia analysis
No
No
5. Smart features No clear edge
Fact
Redmi Band 4
Xiaomi Smart Band 11
Smartphone compatibility
Android 8.0+ and iOS 12.0+
Android and iOS; dual-device Android + iPhone support advertised
Operating system at launch
Xiaomi HyperOS
Xiaomi HyperOS 4
Bluetooth
Yes (5.3)
Yes
Wi-Fi
No
No
NFC / connected pay
Yes (China; offline WeChat/Alipay payments)
No
UWB
No
No
Cellular
No
No
Smartphone notifications
Yes
Yes (simultaneous Android + iPhone dual-device support advertised)
Bluetooth calling
No
No
Smartphone music control
Yes
Yes
On-board music storage
No
No
6. Navigation & safety Even
Fact
Redmi Band 4
Xiaomi Smart Band 11
Maps
No
No
Offline maps
No
No
Navigation
No
No
Emergency SOS
No
No
Satellite SOS
No
No
Fall detection
No
No
LED flashlight
No
No
Diving
No
No
No significant differences in this area.