Screen size
Redmi Watch 4Winner: 2.0"+25%
Watch S51.5"
Quick verdict
Redmi Watch 4 leads the measured specs 5-4.
Measured wins
Redmi Watch 4
5
spec wins
Overall winner
Ties
4
equal specs
Watch S5
4
spec wins
Screen size
Technology
Redmi Watch 4
No cellular connectivity
Watch S5
HSPA / LTE
2G bands
Redmi Watch 4
N/A
Watch S5
3G bands
Redmi Watch 4
N/A
Watch S5
HSDPA
4G bands
Redmi Watch 4
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
Speed
Redmi Watch 4
No
Watch S5
HSPA, LTE
GPRS
Redmi Watch 4
No
Watch S5
No
EDGE
Redmi Watch 4
No
Watch S5
No
Announced
Redmi Watch 4
2023, November 29
Watch S5
2026, May 28
Status
Redmi Watch 4
Available. Released 2023, November 29
Watch S5
Available. Released 2026, May 28
Dimensions
Redmi Watch 4
47.6 x 41.1 x 10.5 mm (1.87 x 1.62 x 0.41 in)
Watch S5
46 x 46 x 11 mm (1.81 x 1.81 x 0.43 in)
Weight
Redmi Watch 4
31.5 g (1.13 oz)
Watch S5
46 g (1.62 oz)
Build
Redmi Watch 4
Plastic back, aluminum frame
Watch S5
Glass front, stainless steel frame, stainless steel/ceramic/forged carbon bezel
SIM
Redmi Watch 4
No
Watch S5
eSIM (market/region dependent)
Other
Redmi Watch 4
Waterproof (5ATM) 50m water resistant
Watch S5
Waterproof (5ATM)
Type
Redmi Watch 4
AMOLED, 600 nits (peak)
Watch S5
AMOLED, 1500 nits (HBM), 2500 nits (peak)
Size
Redmi Watch 4
1.97 inches
Watch S5
1.48 inches
Resolution
Redmi Watch 4
450 x 390 pixels (~302 ppi density)
Watch S5
480 x 480 pixels (~459 ppi density)
Protection
Redmi Watch 4
-
Watch S5
Drop-proof glass
OS
Redmi Watch 4
HyperOS
Watch S5
Xiaomi HyperOS 3
Card slot
Redmi Watch 4
No
Watch S5
No
Internal
Redmi Watch 4
16GB
Watch S5
-
Other
Redmi Watch 4
No
Watch S5
No
Loudspeaker
Redmi Watch 4
Yes
Watch S5
Yes
3.5mm jack
Redmi Watch 4
No
Watch S5
No
WLAN
Redmi Watch 4
No
Watch S5
No
Bluetooth
Redmi Watch 4
5.3, A2DP, LE
Watch S5
5.4, LE
Positioning
Redmi Watch 4
GPS, GLONASS, GALILEO, BDS, QZSS
Watch S5
GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
NFC
Redmi Watch 4
Yes (market/region dependent)
Watch S5
Yes (market/region dependent)
Radio
Redmi Watch 4
No
Watch S5
No
USB
Redmi Watch 4
No
Watch S5
No
Sensors
Redmi Watch 4
Accelerometer, heart rate, compass, gyro, SpO2
Watch S5
Accelerometer, gyro, compass, barometer, heart rate, SpO2
Type
Redmi Watch 4
Li-Po 470 mAh
Watch S5
Li-Po 815 mAh
Colors
Redmi Watch 4
Black, White
Watch S5
Black, Silver, Ceramic Blue, Jungle Green, Beige (eSIM)
Models
Redmi Watch 4
M2314W1
Watch S5
M2530W1, M2517W1
Price
Redmi Watch 4
About 70 EUR
Watch S5
About 180 EUR