Screen size
C100xWinner: 6.8"+74%
Watch 3 Pro1.8"
Quick verdict
C100x leads the measured specs 18-3.
Measured wins
C100x
18
spec wins
Overall winner
Ties
1
equal specs
Watch 3 Pro
3
spec wins
Screen size
Technology
C100x
GSM / HSPA / LTE
Watch 3 Pro
No cellular connectivity
2G bands
C100x
GSM 850 / 900 / 1800 / 1900
Watch 3 Pro
N/A
3G bands
C100x
HSDPA 900 / 2100
Watch 3 Pro
N/A
4G bands
C100x
1, 3, 5, 8, 40
Watch 3 Pro
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
N/A
Speed
C100x
HSPA, LTE
Watch 3 Pro
No
GPRS
C100x
-
Watch 3 Pro
No
EDGE
C100x
-
Watch 3 Pro
No
Announced
C100x
2026, May 07
Watch 3 Pro
2022, September 01
Status
C100x
Released May 15, 2026
Watch 3 Pro
Available. Released 2022, September 09
Dimensions
C100x
166.5 x 78.2 x 8.6 mm (6.56 x 3.08 x 0.34 in)
Watch 3 Pro
45 x 36.8 x 11.7 mm (1.77 x 1.45 x 0.46 in)
Weight
C100x
219 g (7.72 oz)
Watch 3 Pro
40.7 g (1.45 oz)
Build
C100x
Glass front, plastic frame, plastic back
Watch 3 Pro
Glass front, plastic back, plastic frame
SIM
C100x
Nano-SIM + Nano-SIM
Watch 3 Pro
No
Other
C100x
IP64 dust tight and water resistant (water splashes) Drop resistant up to 2m MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions RGB light on the back (notifications, etc.)
Watch 3 Pro
Compatible with standard 22mm straps
Type
C100x
IPS LCD, 120Hz, 900 nits (HBM)
Watch 3 Pro
AMOLED, 500 nits (typ)
Size
C100x
6.8 inches, 113.0 cm2 (~86.8% screen-to-body ratio)
Watch 3 Pro
1.78 inches
Resolution
C100x
720 x 1570 pixels, 19.5:9 ratio (~254 ppi density)
Watch 3 Pro
364 x 448 pixels (~325 ppi density)
Protection
C100x
ArmorShell glass, Mohs level 5
Watch 3 Pro
-
OS
C100x
Android 16
Watch 3 Pro
Proprietary OS
Chipset
C100x
Unisoc T7250 (12 nm)
Watch 3 Pro
-
CPU
C100x
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
Watch 3 Pro
-
GPU
C100x
Mali-G57 MP1
Watch 3 Pro
-
Card slot
C100x
microSDXC
Watch 3 Pro
No
Internal
C100x
128GB 4GB RAM, 128GB 6GB RAM, 256GB 4GB RAM, 256GB 6GB RAM
Watch 3 Pro
Unspecified
Other
C100x
eMMC 5.1
Watch 3 Pro
eMMC 4.5
Dual
C100x
50 MP, f/1.8, (wide), PDAF Auxiliary lens
Watch 3 Pro
-
Features
C100x
LED flash, HDR, panorama
Watch 3 Pro
-
Video
C100x
1080p@30fps
Watch 3 Pro
-
Single
C100x
5 MP, f/2.2, (wide)
Watch 3 Pro
-
Video
C100x
720p@30fps
Watch 3 Pro
-
Loudspeaker
C100x
Yes
Watch 3 Pro
Yes
3.5mm jack
C100x
Yes
Watch 3 Pro
No
WLAN
C100x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Watch 3 Pro
No
Bluetooth
C100x
5.2, A2DP, LE
Watch 3 Pro
5.3, A2DP, LE
Positioning
C100x
GPS, GALILEO, GLONASS, BDS
Watch 3 Pro
GPS
NFC
C100x
Yes (market/region dependent)
Watch 3 Pro
No
Radio
C100x
Unspecified
Watch 3 Pro
No
USB
C100x
USB Type-C 2.0, OTG
Watch 3 Pro
No
Sensors
C100x
Fingerprint (side-mounted), accelerometer, proximity, compass
Watch 3 Pro
Accelerometer, heart rate, SpO2
Type
C100x
Si/C Li-Ion 8000 mAh
Watch 3 Pro
Li-Ion 345 mAh
Charging
C100x
45W wired, 45W PPS, 13.5W PD Reverse wired
Watch 3 Pro
-
Colors
C100x
Golden Coast, Deepblue Tides
Watch 3 Pro
Black, Gray
Models
C100x
RMX5366
Watch 3 Pro
-
Price
C100x
About 160 EUR
Watch 3 Pro
About 150 EUR
Other
C100x
-
Watch 3 Pro
No