Screen size
Redmi A7Winner: 6.9"+79%
Watch S4 Sport1.4"
Quick verdict
Redmi A7 leads the measured specs 15-5.
Measured wins
Redmi A7
15
spec wins
Overall winner
Ties
1
equal specs
Watch S4 Sport
5
spec wins
Screen size
Technology
Redmi A7
GSM / HSPA / LTE
Watch S4 Sport
GSM / HSPA / LTE
2G bands
Redmi A7
GSM 850 / 900 / 1800 / 1900
Watch S4 Sport
GSM 850 / 900 / 1800 / 1900
3G bands
Redmi A7
HSDPA 850 / 900 / 2100
Watch S4 Sport
HSDPA
4G bands
Redmi A7
1, 3, 5, 8, 28, 40, 41
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
3.5mm jack
SD card
Stereo speakers
Watch S4 Sport
LTE
Speed
Redmi A7
HSPA, LTE
Watch S4 Sport
HSPA, LTE
GPRS
Redmi A7
-
Watch S4 Sport
No
EDGE
Redmi A7
-
Watch S4 Sport
No
Announced
Redmi A7
2026, April 21
Watch S4 Sport
2024, July 19
Status
Redmi A7
Available. Released 2026, April 24
Watch S4 Sport
Available. Released 2024, July 19
Dimensions
Redmi A7
171.8 x 79.8 x 8.3 mm (6.76 x 3.14 x 0.33 in)
Watch S4 Sport
46.9 x 46.9 x 12.6 mm (1.85 x 1.85 x 0.50 in)
Weight
Redmi A7
193 g (6.81 oz)
Watch S4 Sport
49 g (1.73 oz)
SIM
Redmi A7
Nano-SIM + Nano-SIM
Watch S4 Sport
eSIM
Other
Redmi A7
Dust and splash resistant
Watch S4 Sport
Waterproof (5ATM) 40m swimproof/diving (EN13319)
Build
Redmi A7
-
Watch S4 Sport
Sapphire crystal front, titanium alloy case, sapphire crystal back
Type
Redmi A7
IPS LCD, 120Hz, 600 nits (peak)
Watch S4 Sport
AMOLED, 2200 nits (peak)
Size
Redmi A7
6.88 inches, 112.4 cm2 (~82.0% screen-to-body ratio)
Watch S4 Sport
1.43 inches
Resolution
Redmi A7
720 x 1640 pixels (~260 ppi density)
Watch S4 Sport
466 x 466 pixels (~326 ppi density)
Protection
Redmi A7
-
Watch S4 Sport
Sapphire crystal glass
OS
Redmi A7
Android 15, up to 2 major Android upgrades
Watch S4 Sport
HyperOS
Chipset
Redmi A7
Unisoc T7250 (12 nm)
Watch S4 Sport
-
CPU
Redmi A7
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
Watch S4 Sport
-
GPU
Redmi A7
Mali-G57 MP1
Watch S4 Sport
-
Card slot
Redmi A7
microSDXC (dedicated slot)
Watch S4 Sport
No
Internal
Redmi A7
64GB 3GB RAM
Watch S4 Sport
32GB
Single
Redmi A7
13 MP, f/2.2, (wide)
Watch S4 Sport
-
Features
Redmi A7
LED flash, HDR
Watch S4 Sport
-
Video
Redmi A7
1080p@30fps
Watch S4 Sport
-
Single
Redmi A7
8 MP, f/2.0, (wide)
Watch S4 Sport
-
Features
Redmi A7
HDR
Watch S4 Sport
-
Video
Redmi A7
1080p@30fps
Watch S4 Sport
-
Loudspeaker
Redmi A7
Yes
Watch S4 Sport
Yes
3.5mm jack
Redmi A7
Yes
Watch S4 Sport
No
WLAN
Redmi A7
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Watch S4 Sport
No
Bluetooth
Redmi A7
5.2, A2DP, LE
Watch S4 Sport
5.2, A2DP, LE
Positioning
Redmi A7
GPS, GALILEO, GLONASS
Watch S4 Sport
GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
NFC
Redmi A7
No
Watch S4 Sport
Yes (NFC car key support)
Radio
Redmi A7
FM radio
Watch S4 Sport
No
USB
Redmi A7
USB Type-C 2.0, OTG
Watch S4 Sport
No
Sensors
Redmi A7
Fingerprint (side-mounted), accelerometer, compass
Watch S4 Sport
Accelerometer, gyro, compass, barometer, heart rate, SpO2
Other
Redmi A7
Virtual proximity sensing
Watch S4 Sport
Depth gauge NFC car key support: Xiaomi SU7 and Lotus cars
Type
Redmi A7
5200 mAh
Watch S4 Sport
Li-Po 586 mAh
Charging
Redmi A7
15W wired 7.5W reverse wired
Watch S4 Sport
-
Colors
Redmi A7
Black, Sky Blue
Watch S4 Sport
Titanium
Price
Redmi A7
₹ 10,499
Watch S4 Sport
About 250 EUR
Models
Redmi A7
-
Watch S4 Sport
M2312W1
Other
Redmi A7
-
Watch S4 Sport
No