Screen size
Watch S31.4"
Watch S5Winner: 1.5"+3.4%
Quick verdict
Watch S5 leads the measured specs 6-2.
Measured wins
Watch S3
2
spec wins
Ties
4
equal specs
Watch S5
6
spec wins
Overall winner
Screen size
Technology
Watch S3
GSM / HSPA / LTE
Watch S5
HSPA / LTE
2G bands
Watch S3
GSM 850 / 900 / 1800 / 1900
Watch S5
3G bands
Watch S3
HSDPA
Watch S5
HSDPA
4G bands
Watch S3
LTE
Watch S5
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
LTE
Speed
Watch S3
HSPA, LTE
Watch S5
HSPA, LTE
GPRS
Watch S3
No
Watch S5
No
EDGE
Watch S3
No
Watch S5
No
Announced
Watch S3
2023, October 28
Watch S5
2026, May 28
Status
Watch S3
Available. Released 2023, October 28
Watch S5
Available. Released 2026, May 28
Dimensions
Watch S3
47 x 47 x 12 mm (1.85 x 1.85 x 0.47 in)
Watch S5
46 x 46 x 11 mm (1.81 x 1.81 x 0.43 in)
Weight
Watch S3
44 g (1.55 oz)
Watch S5
46 g (1.62 oz)
Build
Watch S3
Aluminum alloy frame, stainless steel bezel
Watch S5
Glass front, stainless steel frame, stainless steel/ceramic/forged carbon bezel
SIM
Watch S3
eSIM (market/region dependent)
Watch S5
eSIM (market/region dependent)
Other
Watch S3
Waterproof (5ATM)
Watch S5
Waterproof (5ATM)
Type
Watch S3
AMOLED, 600 nits
Watch S5
AMOLED, 1500 nits (HBM), 2500 nits (peak)
Size
Watch S3
1.43 inches
Watch S5
1.48 inches
Resolution
Watch S3
466 x 466 pixels (~326 ppi density)
Watch S5
480 x 480 pixels (~459 ppi density)
Protection
Watch S3
Scratch/drop-proof glass
Watch S5
Drop-proof glass
OS
Watch S3
HyperOS
Watch S5
Xiaomi HyperOS 3
Card slot
Watch S3
No
Watch S5
No
Other
Watch S3
No
Watch S5
No
Loudspeaker
Watch S3
Yes
Watch S5
Yes
3.5mm jack
Watch S3
No
Watch S5
No
WLAN
Watch S3
No
Watch S5
No
Bluetooth
Watch S3
5.2, A2DP, LE
Watch S5
5.4, LE
Positioning
Watch S3
GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
Watch S5
GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
NFC
Watch S3
Yes (market/region dependent)
Watch S5
Yes (market/region dependent)
Radio
Watch S3
No
Watch S5
No
USB
Watch S3
No
Watch S5
No
Sensors
Watch S3
Accelerometer, gyro, compass, barometer, heart rate, SpO2
Watch S5
Accelerometer, gyro, compass, barometer, heart rate, SpO2
Type
Watch S3
Li-Po 486 mAh
Watch S5
Li-Po 815 mAh
Colors
Watch S3
Black, Silver, Brown
Watch S5
Black, Silver, Ceramic Blue, Jungle Green, Beige (eSIM)
Models
Watch S3
M2313W1, M2311W1
Watch S5
M2530W1, M2517W1
Price
Watch S3
About 110 EUR
Watch S5
About 180 EUR