Screen size
Watch S4 41mm1.3"
Watch S5Winner: 1.5"+11%
Quick verdict
Watch S5 leads the measured specs 5-3.
Measured wins
Watch S4 41mm
3
spec wins
Ties
4
equal specs
Watch S5
5
spec wins
Overall winner
Screen size
Technology
Watch S4 41mm
No cellular connectivity
Watch S5
HSPA / LTE
2G bands
Watch S4 41mm
N/A
Watch S5
3G bands
Watch S4 41mm
N/A
Watch S5
HSDPA
4G bands
Watch S4 41mm
N/A
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
GPRS
Watch S4 41mm
No
Watch S5
No
EDGE
Watch S4 41mm
No
Watch S5
No
Speed
Watch S4 41mm
-
Watch S5
HSPA, LTE
Announced
Watch S4 41mm
2025, June 26
Watch S5
2026, May 28
Status
Watch S4 41mm
Available. Released 2025, June 26
Watch S5
Available. Released 2026, May 28
Dimensions
Watch S4 41mm
41.2 x 41.2 x 9.5 mm (1.62 x 1.62 x 0.37 in)
Watch S5
46 x 46 x 11 mm (1.81 x 1.81 x 0.43 in)
Weight
Watch S4 41mm
32 g (1.13 oz)
Watch S5
46 g (1.62 oz)
Build
Watch S4 41mm
Stainless steel bezel and frame
Watch S5
Glass front, stainless steel frame, stainless steel/ceramic/forged carbon bezel
SIM
Watch S4 41mm
No
Watch S5
eSIM (market/region dependent)
Other
Watch S4 41mm
Waterproof (5ATM)
Watch S5
Waterproof (5ATM)
Type
Watch S4 41mm
AMOLED, 1500 nits (HBM), 2200 nits (peak)
Watch S5
AMOLED, 1500 nits (HBM), 2500 nits (peak)
Size
Watch S4 41mm
1.32 inches
Watch S5
1.48 inches
Resolution
Watch S4 41mm
466 x 466 pixels (~320 ppi density)
Watch S5
480 x 480 pixels (~459 ppi density)
Protection
Watch S4 41mm
Scratch/drop-proof glass
Watch S5
Drop-proof glass
OS
Watch S4 41mm
HyperOS 2
Watch S5
Xiaomi HyperOS 3
Card slot
Watch S4 41mm
No
Watch S5
No
Internal
Watch S4 41mm
Unspecified
Watch S5
-
Other
Watch S4 41mm
No
Watch S5
No
Loudspeaker
Watch S4 41mm
Yes
Watch S5
Yes
3.5mm jack
Watch S4 41mm
No
Watch S5
No
WLAN
Watch S4 41mm
No
Watch S5
No
Bluetooth
Watch S4 41mm
5.4, A2DP, LE
Watch S5
5.4, LE
Positioning
Watch S4 41mm
GPS, GLONASS, GALILEO, BDS, QZSS
Watch S5
GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
NFC
Watch S4 41mm
Yes (market/region dependent)
Watch S5
Yes (market/region dependent)
Radio
Watch S4 41mm
No
Watch S5
No
USB
Watch S4 41mm
No
Watch S5
No
Sensors
Watch S4 41mm
Accelerometer, gyro, compass, barometer, heart rate, SpO2, thermometer (skin temperature)
Watch S5
Accelerometer, gyro, compass, barometer, heart rate, SpO2
Type
Watch S4 41mm
Li-Po 320 mAh
Watch S5
Li-Po 815 mAh
Colors
Watch S4 41mm
Black, Green, White, Gold
Watch S5
Black, Silver, Ceramic Blue, Jungle Green, Beige (eSIM)
Models
Watch S4 41mm
M2502W1
Watch S5
M2530W1, M2517W1
Price
Watch S4 41mm
$ 196.42 / € 118.60
Watch S5
About 180 EUR