Xiaomi Smart Band 11 vs Samsung Galaxy Fit3 specs comparison
Smart Band 11 is the better all-round buy, with longer battery life, sleep HRV and a larger AMOLED display. Galaxy Fit3 still works well for someone already deep in Samsung’s ecosystem, but its 13-day battery life and Android-only compatibility make it less flexible.
At a glance
What's different?
The strongest database-backed differences, without pretending every different number is an advantage.
Xiaomi Smart Band 11
- Phone compatibility Android and iOS; dual-device Android + iPhone support advertised
- 62% longer battery life 21 days vs 13 days
- 15.8% lighter 15.58 g vs 18.5 g
Samsung Galaxy Fit3
- Phone compatibility Android; Galaxy smartphone required for some features
- Emergency SOS Not available on the other model
- Fall detection Not available on the other model
Both include blood oxygen tracking.
Full comparison
The full record
65 specifications across 6 areas, with 26 genuine differences.
1. Design & display Xiaomi Smart Band 11
Fact
Xiaomi Smart Band 11
Samsung Galaxy Fit3
Release date
2026-09
2024-02
Physical size
9.99 mm thick
42.9 x 28.8 x 9.9 mm
Weight
15.58 g
18.5 g (body only)
Material
Ceramic Edition and Unibody All-metal Edition also available
Aluminum body; polymer/silicone strap
Water resistance
5 ATM
5 ATM; IP68
Display type
AMOLED, narrow-edge quadrilateral display (symetrical 2m bezels)
AMOLED
Display size
1.72 inch
1.6 inch (40.0 mm)
Display resolution
212 x 520 pixels
256 x 402 pixels
2. Battery & charging Xiaomi Smart Band 11
Fact
Xiaomi Smart Band 11
Samsung Galaxy Fit3
Battery
Rechargeable battery; 233 mAh
Rechargeable battery; 208 mAh
Battery life
up to 21 days
Up to 13 days
Charging
Magnetic charging
Proprietary magnetic/pogo charging cable; fast charging
Charging time
About 60 minutes
About 65% in 30 minutes
3. Sensors & positioning Mixed
Fact
Xiaomi Smart Band 11
Samsung Galaxy Fit3
GNSS type
Connected GPS
None
GPS
Connected GPS (phone required)
No
Accelerometer
Yes
Yes
Gyroscope
Yes
Yes
Barometric altimeter
No
Yes
Compass
Yes
No
Geomagnetic
Yes
No
Ambient light sensor
Yes
Yes
Optical heart rate
Yes (upgraded high-precision sensor)
Yes
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 Mixed
Fact
Xiaomi Smart Band 11
Samsung Galaxy Fit3
Steps
Yes
Yes
Distance
Yes
Yes
Calories burned
Yes
Yes
Floors
No
Yes
Sports tracking
Yes (150+ sports modes)
Yes (100+ workouts)
Sleep
Yes
Yes
Heart rate
Yes
Yes
HRV
Yes (sleep HRV)
No
Stress
Yes
Yes
Blood oxygen
Yes
Yes
Respiration rate
Yes (average breathing rate during sleep)
No
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
Xiaomi Smart Band 11
Samsung Galaxy Fit3
Smartphone compatibility
Android and iOS; dual-device Android + iPhone support advertised
Android; Galaxy smartphone required for some features
Operating system at launch
Xiaomi HyperOS 4
FreeRTOS
Bluetooth
Yes
Yes (5.3)
Wi-Fi
No
No
NFC / connected pay
No
No
Cellular
No
No
Smartphone notifications
Yes (simultaneous Android + iPhone dual-device support advertised)
Yes
Bluetooth calling
No
No
Smartphone music control
Yes
Yes
On-board music storage
No
No
6. Navigation & safety Samsung Galaxy Fit3
Fact
Xiaomi Smart Band 11
Samsung Galaxy Fit3
Maps
No
No
Offline maps
No
No
Navigation
No
No
Emergency SOS
No
Yes (through paired Galaxy smartphone)
Fall detection
No
Yes (through paired Galaxy smartphone)