Screen size
C291.5"
U1Winner: 1.9"+21%
Quick verdict
C29 leads the measured specs 4-3.
Measured wins
C29
4
spec wins
Overall winner
Ties
4
equal specs
U1
3
spec wins
Screen size
Technology
C29
No cellular connectivity
U1
No cellular connectivity
2G bands
C29
N/A
U1
N/A
3G bands
C29
N/A
U1
N/A
4G bands
C29
N/A
U1
N/A
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
Speed
C29
No
U1
No
GPRS
C29
No
U1
No
EDGE
C29
No
U1
No
Announced
C29
2024, August
U1
2025, February
Status
C29
Available. Released 2024, August
U1
Available. Released 2025, February
Dimensions
C29
51.9 x 49.5 x 13.4 mm (2.04 x 1.95 x 0.53 in)
U1
49.8 x 42.4 x 11.4 mm (1.96 x 1.67 x 0.45 in)
Weight
C29
42.1 g (1.48 oz)
U1
43.8 g (1.55 oz)
Build
C29
Zinc alloy/ Stainless steel frame, titanium bezel
U1
-
SIM
C29
No
U1
No
Other
C29
1 ATM waterproof
U1
Waterproof (1ATM)
Type
C29
TFT LCD
U1
TFT LCD
Size
C29
1.52 inches
U1
1.93 inches
Resolution
C29
360 x 360 pixels (~335 ppi density)
U1
240 x 288 pixels (~194 ppi density)
OS
C29
Proprietary OS
U1
Proprietary OS
Card slot
C29
No
U1
No
Internal
C29
128Mb
U1
16MB
Other
C29
No
U1
No
Loudspeaker
C29
Yes
U1
Yes
3.5mm jack
C29
No
U1
No
WLAN
C29
No
U1
No
Bluetooth
C29
5.3, A2DP
U1
5.4, A2DP, LE
Positioning
C29
No
U1
No
NFC
C29
No
U1
No
Radio
C29
No
U1
No
USB
C29
No
U1
No
Sensors
C29
Accelerometer, heart rate, SpO2, blood pressure
U1
Accelerometer, gyro, heart rate, SpO2
Type
C29
410 mAh
U1
300 mAh
Colors
C29
Black
U1
Black, Pink