Screen size
Watch Buds 2Winner: 1.5"+8%
Watch Ultimate Design Spring1.4"
Quick verdict
Watch Ultimate Design Spring leads the measured specs 5-2.
Measured wins
Watch Buds 2
2
spec wins
Ties
7
equal specs
Watch Ultimate Design Spring
5
spec wins
Overall winner
Screen size
Technology
Watch Buds 2
No cellular connectivity
Watch Ultimate Design Spring
HSPA / LTE
2G bands
Watch Buds 2
N/A
Watch Ultimate Design Spring
N/A
3G bands
Watch Buds 2
N/A
Watch Ultimate Design Spring
HSDPA 850 / 900 / 1900 / 2100
4G bands
Watch Buds 2
N/A
Resolution
equal specsRefresh rate
Peak brightness
equal specsPixel 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
equal specsStereo speakers
Watch Ultimate Design Spring
LTE
Speed
Watch Buds 2
No
Watch Ultimate Design Spring
HSPA, LTE
GPRS
Watch Buds 2
No
Watch Ultimate Design Spring
-
EDGE
Watch Buds 2
No
Watch Ultimate Design Spring
-
Announced
Watch Buds 2
2026, April 20
Watch Ultimate Design Spring
2026, April 20
Status
Watch Buds 2
Available. Released 2026, April 20
Watch Ultimate Design Spring
Available. Released 2026, May 08
Dimensions
Watch Buds 2
47 x 47 x 14.7 mm (1.85 x 1.85 x 0.58 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 Buds 2
54.5 g (1.90 oz)
Watch Ultimate Design Spring
91 g (3.21 oz)
Build
Watch Buds 2
Titanium alloy frame, glass-fiber reinforced plastic back
Watch Ultimate Design Spring
Sapphire crystal front, titanium alloy front shell, ceramic back
SIM
Watch Buds 2
No
Watch Ultimate Design Spring
eSIM
Other
Watch Buds 2
Built-in wireless earbuds housed beneath the display; charging from the watch Compatible with standard 22mm straps
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 Buds 2
LTPO AMOLED, 3000 nits (peak)
Watch Ultimate Design Spring
LTPO2 AMOLED, 3000 nits (peak)
Size
Watch Buds 2
1.5 inches
Watch Ultimate Design Spring
1.38 inches
Resolution
Watch Buds 2
466 x 466 pixels (~310 ppi density)
Watch Ultimate Design Spring
466 x 466 pixels (~338 ppi density)
Protection
Watch Buds 2
-
Watch Ultimate Design Spring
Sapphire crystal glass
OS
Watch Buds 2
HarmonyOS
Watch Ultimate Design Spring
HarmonyOS 6.1
Chipset
Watch Buds 2
-
Watch Ultimate Design Spring
Kirin W80
Card slot
Watch Buds 2
No
Watch Ultimate Design Spring
No
Other
Watch Buds 2
No
Watch Ultimate Design Spring
No
Loudspeaker
Watch Buds 2
No
Watch Ultimate Design Spring
Yes
3.5mm jack
Watch Buds 2
No
Watch Ultimate Design Spring
No
WLAN
Watch Buds 2
No
Watch Ultimate Design Spring
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
Bluetooth
Watch Buds 2
5.2, A2DP, LE
Watch Ultimate Design Spring
5.2, A2DP, LE
Positioning
Watch Buds 2
GPS, GLONASS, GALILEO, BDS
Watch Ultimate Design Spring
GPS (L1+L5), GLONASS, GALILEO (L1+L5), QZSS (L1+L5), BDS
NFC
Watch Buds 2
Yes
Watch Ultimate Design Spring
Yes
Radio
Watch Buds 2
No
Watch Ultimate Design Spring
No
USB
Watch Buds 2
No
Watch Ultimate Design Spring
No
Sensors
Watch Buds 2
Accelerometer, gyro, heart rate, SpO2
Watch Ultimate Design Spring
Accelerometer, gyro, heart rate, barometer, compass, SpO2, thermometer (body temperature), X-TAP
Other
Watch Buds 2
-
Watch Ultimate Design Spring
Sleep apnea detection Heart Rate Variability (HRV) Arterial Stiffness Detection
Type
Watch Buds 2
Li-Ion 410 mAh
Watch Ultimate Design Spring
Li-Ion 540 mAh
Charging
Watch Buds 2
Wireless
Watch Ultimate Design Spring
Wireless
Colors
Watch Buds 2
Black, Silver
Watch Ultimate Design Spring
Diamond Silver
Models
Watch Buds 2
LBA-B19
Watch Ultimate Design Spring
CHC-AL00
Price
Watch Buds 2
About 440 EUR
Watch Ultimate Design Spring
About 4000 EUR