Screen size
Watch D2Winner: 1.8"+24%
Watch Ultimate Design Spring1.4"
Quick verdict
Watch Ultimate Design Spring leads the measured specs 7-4.
Measured wins
Watch D2
4
spec wins
Ties
4
equal specs
Watch Ultimate Design Spring
7
spec wins
Overall winner
Screen size
Technology
Watch D2
No cellular connectivity
Watch Ultimate Design Spring
HSPA / LTE
2G bands
Watch D2
N/A
Watch Ultimate Design Spring
N/A
3G bands
Watch D2
N/A
Watch Ultimate Design Spring
HSDPA 850 / 900 / 1900 / 2100
4G bands
Watch D2
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
Watch Ultimate Design Spring
LTE
Speed
Watch D2
No
Watch Ultimate Design Spring
HSPA, LTE
GPRS
Watch D2
No
Watch Ultimate Design Spring
-
EDGE
Watch D2
No
Watch Ultimate Design Spring
-
Announced
Watch D2
2024, September 19
Watch Ultimate Design Spring
2026, April 20
Status
Watch D2
Available. Released 2024, September 19
Watch Ultimate Design Spring
Available. Released 2026, May 08
Dimensions
Watch D2
48 x 38 x 13.3 mm (1.89 x 1.50 x 0.52 in)
Watch Ultimate Design Spring
42.9 x 42.9 x 10.8 mm (1.69 x 1.69 x 0.43 in)
Weight
Watch D2
40 g (1.41 oz)
Watch Ultimate Design Spring
91 g (3.21 oz)
Build
Watch D2
Glass front, aluminum frame
Watch Ultimate Design Spring
Sapphire crystal front, titanium alloy front shell, ceramic back
SIM
Watch D2
No
Watch Ultimate Design Spring
eSIM
Other
Watch D2
IP68 dust tight and water resistant Blood Pressure Measurement & ECG with built-in pump & inflatable strap ECG certified
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
Watch D2
AMOLED
Watch Ultimate Design Spring
LTPO2 AMOLED, 3000 nits (peak)
Size
Watch D2
1.82 inches
Watch Ultimate Design Spring
1.38 inches
Resolution
Watch D2
480 x 408 pixels (~347 ppi density)
Watch Ultimate Design Spring
466 x 466 pixels (~338 ppi density)
Protection
Watch D2
-
Watch Ultimate Design Spring
Sapphire crystal glass
OS
Watch D2
HarmonyOS 5.0
Watch Ultimate Design Spring
HarmonyOS 6.1
Chipset
Watch D2
-
Watch Ultimate Design Spring
Kirin W80
Card slot
Watch D2
No
Watch Ultimate Design Spring
No
Internal
Watch D2
Unspecified
Watch Ultimate Design Spring
-
Other
Watch D2
No
Watch Ultimate Design Spring
No
Loudspeaker
Watch D2
Yes
Watch Ultimate Design Spring
Yes
3.5mm jack
Watch D2
No
Watch Ultimate Design Spring
No
WLAN
Watch D2
No
Watch Ultimate Design Spring
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
Bluetooth
Watch D2
5.2, LE
Watch Ultimate Design Spring
5.2, A2DP, LE
Positioning
Watch D2
GPS
Watch Ultimate Design Spring
GPS (L1+L5), GLONASS, GALILEO (L1+L5), QZSS (L1+L5), BDS
NFC
Watch D2
Yes (market/region dependent)
Watch Ultimate Design Spring
Yes
Radio
Watch D2
No
Watch Ultimate Design Spring
No
USB
Watch D2
No
Watch Ultimate Design Spring
No
Sensors
Watch D2
Accelerometer, gyro, heart rate, SpO2, thermometer (skin temperature), differential pressure sensor, barometer
Watch Ultimate Design Spring
Accelerometer, gyro, heart rate, barometer, compass, SpO2, thermometer (body temperature), X-TAP
Other
Watch D2
-
Watch Ultimate Design Spring
Sleep apnea detection Heart Rate Variability (HRV) Arterial Stiffness Detection
Type
Watch D2
Li-Ion 524 mAh
Watch Ultimate Design Spring
Li-Ion 540 mAh
Charging
Watch D2
5W wireless
Watch Ultimate Design Spring
Wireless
Colors
Watch D2
Black, Gold
Watch Ultimate Design Spring
Diamond Silver
Models
Watch D2
LCA-B11
Watch Ultimate Design Spring
CHC-AL00
Price
Watch D2
About 370 EUR
Watch Ultimate Design Spring
About 4000 EUR