Screen size
U8350 BoulderWinner: 2.6"+47%
Watch Ultimate Design Spring1.4"
Quick verdict
Watch Ultimate Design Spring leads the measured specs 8-7.
Measured wins
U8350 Boulder
7
spec wins
Ties
1
equal specs
Watch Ultimate Design Spring
8
spec wins
Overall winner
Screen size
Technology
U8350 Boulder
GSM / HSPA
Watch Ultimate Design Spring
HSPA / LTE
2G bands
U8350 Boulder
GSM 850 / 900 / 1800 / 1900
Watch Ultimate Design Spring
N/A
3G bands
U8350 Boulder
HSDPA 900 / 2100
Watch Ultimate Design Spring
HSDPA 850 / 900 / 1900 / 2100
Speed
U8350 Boulder
HSPA 7.2/0.384 Mbps
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 Ultimate Design Spring
HSPA, LTE
4G bands
U8350 Boulder
-
Watch Ultimate Design Spring
LTE
Announced
U8350 Boulder
2011. Released 2011, October
Watch Ultimate Design Spring
2026, April 20
Status
U8350 Boulder
Discontinued
Watch Ultimate Design Spring
Available. Released 2026, May 08
Dimensions
U8350 Boulder
115 x 62.8 x 9.9 mm (4.53 x 2.47 x 0.39 in)
Watch Ultimate Design Spring
42.9 x 42.9 x 10.8 mm (1.69 x 1.69 x 0.43 in)
Weight
U8350 Boulder
105 g (3.70 oz)
Watch Ultimate Design Spring
91 g (3.21 oz)
Keyboard
U8350 Boulder
QWERTY
Watch Ultimate Design Spring
-
SIM
U8350 Boulder
Mini-SIM
Watch Ultimate Design Spring
eSIM
Build
U8350 Boulder
-
Watch Ultimate Design Spring
Sapphire crystal front, titanium alloy front shell, ceramic back
Other
U8350 Boulder
-
Watch Ultimate Design Spring
99 natural diamonds (0.8 carats) 5 ATM (maximum depth 40 meters when diving) IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) ECG certified
Type
U8350 Boulder
TFT, 256K colors
Watch Ultimate Design Spring
LTPO2 AMOLED, 3000 nits (peak)
Size
U8350 Boulder
2.6 inches, 20.9 cm2 (~29.0% screen-to-body ratio)
Watch Ultimate Design Spring
1.38 inches
Resolution
U8350 Boulder
320 x 240 pixels, 4:3 ratio (~154 ppi density)
Watch Ultimate Design Spring
466 x 466 pixels (~338 ppi density)
Protection
U8350 Boulder
-
Watch Ultimate Design Spring
Sapphire crystal glass
OS
U8350 Boulder
Android 2.2 (Froyo)
Watch Ultimate Design Spring
HarmonyOS 6.1
Chipset
U8350 Boulder
Qualcomm MSM7225 Snapdragon S1
Watch Ultimate Design Spring
Kirin W80
CPU
U8350 Boulder
528 MHz ARM 11
Watch Ultimate Design Spring
-
GPU
U8350 Boulder
No
Watch Ultimate Design Spring
-
Card slot
U8350 Boulder
microSDHC (dedicated slot)
Watch Ultimate Design Spring
No
Internal
U8350 Boulder
512MB 256MB RAM
Watch Ultimate Design Spring
-
Single
U8350 Boulder
3.2 MP
Watch Ultimate Design Spring
-
Video
U8350 Boulder
Yes
Watch Ultimate Design Spring
-
Other
U8350 Boulder
No
Watch Ultimate Design Spring
-
Loudspeaker
U8350 Boulder
Yes
Watch Ultimate Design Spring
Yes
3.5mm jack
U8350 Boulder
Yes
Watch Ultimate Design Spring
No
WLAN
U8350 Boulder
Wi-Fi 802.11 b/g/n
Watch Ultimate Design Spring
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
Bluetooth
U8350 Boulder
2.1, A2DP
Watch Ultimate Design Spring
5.2, A2DP, LE
Positioning
U8350 Boulder
GPS, A-GPS
Watch Ultimate Design Spring
GPS (L1+L5), GLONASS, GALILEO (L1+L5), QZSS (L1+L5), BDS
Radio
U8350 Boulder
FM radio
Watch Ultimate Design Spring
No
USB
U8350 Boulder
microUSB 2.0
Watch Ultimate Design Spring
No
NFC
U8350 Boulder
-
Watch Ultimate Design Spring
Yes
Sensors
U8350 Boulder
Accelerometer, proximity, compass
Watch Ultimate Design Spring
Accelerometer, gyro, heart rate, barometer, compass, SpO2, thermometer (body temperature), X-TAP
Other
U8350 Boulder
MP3/WAV/eAAC+ player MP4/H.264 player Organizer Document viewer Photo viewer/editor Voice memo Predictive text input
Watch Ultimate Design Spring
Sleep apnea detection Heart Rate Variability (HRV) Arterial Stiffness Detection
Type
U8350 Boulder
Removable Li-Ion 1200 mAh battery
Watch Ultimate Design Spring
Li-Ion 540 mAh
Charging
U8350 Boulder
-
Watch Ultimate Design Spring
Wireless
Colors
U8350 Boulder
Black, White
Watch Ultimate Design Spring
Diamond Silver
Price
U8350 Boulder
About 90 EUR
Watch Ultimate Design Spring
About 4000 EUR
Models
U8350 Boulder
-
Watch Ultimate Design Spring
CHC-AL00
Other
U8350 Boulder
-
Watch Ultimate Design Spring
No