Screen size
A6s 4GWinner: 6.8"+72%
Watch 4 Pro1.9"
Quick verdict
A6s 4G leads the measured specs 16-2.
Measured wins
A6s 4G
16
spec wins
Overall winner
Ties
4
equal specs
Watch 4 Pro
2
spec wins
Screen size
Technology
A6s 4G
GSM / HSPA / LTE
Watch 4 Pro
HSPA / LTE
2G bands
A6s 4G
GSM 850 / 900 / 1800 / 1900
Watch 4 Pro
N/A
3G bands
A6s 4G
HSDPA 850 / 900 / 2100 - version 1, HSDPA 900 / 2100 - version 2
Watch 4 Pro
HSDPA 850 / 900 / 2100
4G bands
A6s 4G
1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - version 1, 1, 3, 5, 8, 40 - version 2
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
equal specsUSB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
Stereo speakers
Watch 4 Pro
LTE
Speed
A6s 4G
HSPA, LTE
Watch 4 Pro
HSPA, LTE
Announced
A6s 4G
2026, January 09
Watch 4 Pro
2023, August 29
Status
A6s 4G
Available. Released 2026, January 09
Watch 4 Pro
Available. Released 2023, September 08
Dimensions
A6s 4G
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
Watch 4 Pro
50.1 x 38.3 x 12.9 mm (1.97 x 1.51 x 0.51 in)
Weight
A6s 4G
215 g (7.58 oz)
Watch 4 Pro
52.3 g (1.83 oz)
Build
A6s 4G
Glass front, plastic frame, plastic back
Watch 4 Pro
Glass front, stainless steel frame
SIM
A6s 4G
Nano-SIM + Nano-SIM
Watch 4 Pro
eSIM (market/region dependent)
Other
A6s 4G
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
Watch 4 Pro
5ATM water resistant ECG certified
Type
A6s 4G
IPS LCD, 120Hz, 1125 nits (peak)
Watch 4 Pro
LTPO AMOLED
Size
A6s 4G
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
Watch 4 Pro
1.91 inches
Resolution
A6s 4G
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
Watch 4 Pro
378 x 496 pixels (~327 ppi density)
OS
A6s 4G
Android 15, ColorOS 15
Watch 4 Pro
ColorOS Watch 3.0 - China
Chipset
A6s 4G
Qualcomm SM6225 Snapdragon 685 (6 nm)
Watch 4 Pro
Qualcomm Snapdragon W5+ Gen 1 (4 nm)
CPU
A6s 4G
Octa-core (4x2.8 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53)
Watch 4 Pro
Quad-core 1.7 GHz Cortex-A53
GPU
A6s 4G
Adreno 610
Watch 4 Pro
Adreno A702
Card slot
A6s 4G
microSDXC
Watch 4 Pro
No
Internal
A6s 4G
128GB 8GB RAM, 256GB 8GB RAM
Watch 4 Pro
32GB 2GB RAM
Other
A6s 4G
UFS 2.2
Watch 4 Pro
-
Dual
A6s 4G
50 MP, f/1.8, (wide), PDAF Auxiliary lens
Watch 4 Pro
-
Features
A6s 4G
LED flash, HDR, panorama
Watch 4 Pro
-
Video
A6s 4G
1080p@30fps
Watch 4 Pro
-
Single
A6s 4G
16 MP, f/2.4, (wide)
Watch 4 Pro
-
Features
A6s 4G
Panorama
Watch 4 Pro
-
Video
A6s 4G
1080p@30fps
Watch 4 Pro
-
Loudspeaker
A6s 4G
Yes, with stereo speakers
Watch 4 Pro
Yes
3.5mm jack
A6s 4G
No
Watch 4 Pro
No
WLAN
A6s 4G
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Watch 4 Pro
Wi-Fi 802.11 a/b/g/n
Bluetooth
A6s 4G
5.0, A2DP, LE, aptX
Watch 4 Pro
5.0, A2DP, LE
Positioning
A6s 4G
GPS, GALILEO, GLONASS, QZSS
Watch 4 Pro
GPS, GLONASS, BDS, GALILEO, QZSS
NFC
A6s 4G
Yes (market/region dependent)
Watch 4 Pro
Yes
Radio
A6s 4G
Unspecified
Watch 4 Pro
No
USB
A6s 4G
USB Type-C 2.0, OTG
Watch 4 Pro
No
Sensors
A6s 4G
Fingerprint (side-mounted), accelerometer, proximity, compass
Watch 4 Pro
Accelerometer, gyro, heart rate, compass, barometer, SpO2, thermometer (skin temperature)
Other
A6s 4G
-
Watch 4 Pro
Temperature sensing (0.1˚ accuracy)
Type
A6s 4G
Si/C Li-Ion 7000 mAh
Watch 4 Pro
Li-Ion 570 mAh
Charging
A6s 4G
80W wired, 33W PPS, 13.5W PD, 56% in 30 min 5W reverse wired
Watch 4 Pro
-
Colors
A6s 4G
Cappuccino Brown, Ice White
Watch 4 Pro
Black, Silver
Models
A6s 4G
CPH2815
Watch 4 Pro
-
Price
A6s 4G
-
Watch 4 Pro
About 290 EUR
Other
A6s 4G
-
Watch 4 Pro
No