Screen size
equal specsWatch Buds 21.5"
Watch Ultimate1.5"
Quick verdict
Watch Ultimate leads the measured specs 5-3.
Measured wins
Watch Buds 2
3
spec wins
Ties
6
equal specs
Watch Ultimate
5
spec wins
Overall winner
Screen size
equal specsTechnology
Watch Buds 2
No cellular connectivity
Watch Ultimate
No cellular connectivity
2G bands
Watch Buds 2
N/A
Watch Ultimate
N/A
3G bands
Watch Buds 2
N/A
Watch Ultimate
N/A
4G bands
Watch Buds 2
N/A
Watch Ultimate
Resolution
equal specsRefresh 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
N/A
Speed
Watch Buds 2
No
Watch Ultimate
No
GPRS
Watch Buds 2
No
Watch Ultimate
No
EDGE
Watch Buds 2
No
Watch Ultimate
No
Announced
Watch Buds 2
2026, April 20
Watch Ultimate
2023, March 23
Status
Watch Buds 2
Available. Released 2026, April 20
Watch Ultimate
Available. Released 2023, March 31
Dimensions
Watch Buds 2
47 x 47 x 14.7 mm (1.85 x 1.85 x 0.58 in)
Watch Ultimate
48.5 x 48.5 x 13 mm (1.91 x 1.91 x 0.51 in)
Weight
Watch Buds 2
54.5 g (1.90 oz)
Watch Ultimate
76 g (2.68 oz)
Build
Watch Buds 2
Titanium alloy frame, glass-fiber reinforced plastic back
Watch Ultimate
Sapphire crystal front, cerramic bezzel, zirconium front case, ceramic back
SIM
Watch Buds 2
No
Watch Ultimate
No
Other
Watch Buds 2
Built-in wireless earbuds housed beneath the display; charging from the watch Compatible with standard 22mm straps
Watch Ultimate
Swimproof/diving (EN13319, ISO 22810:2010) IP68 dust tight and water resistant (immersible up to 100m/10ATM) ECG certified
Type
Watch Buds 2
LTPO AMOLED, 3000 nits (peak)
Watch Ultimate
LTPO AMOLED
Size
Watch Buds 2
1.5 inches
Watch Ultimate
1.5 inches
Resolution
Watch Buds 2
466 x 466 pixels (~310 ppi density)
Watch Ultimate
466 x 466 pixels (~311 ppi density)
OS
Watch Buds 2
HarmonyOS
Watch Ultimate
HarmonyOS 3.0
Card slot
Watch Buds 2
No
Watch Ultimate
No
Internal
Watch Buds 2
-
Watch Ultimate
32GB
Other
Watch Buds 2
No
Watch Ultimate
No
Loudspeaker
Watch Buds 2
No
Watch Ultimate
Yes
3.5mm jack
Watch Buds 2
No
Watch Ultimate
No
WLAN
Watch Buds 2
No
Watch Ultimate
Yes (only for Bluetooth transmission acceleration)
Bluetooth
Watch Buds 2
5.2, A2DP, LE
Watch Ultimate
5.2, A2DP, LE
Positioning
Watch Buds 2
GPS, GLONASS, GALILEO, BDS
Watch Ultimate
GPS (L1+L5), GLONASS, BDS, GALILEO, QZSS
NFC
Watch Buds 2
Yes
Watch Ultimate
Yes
Radio
Watch Buds 2
No
Watch Ultimate
No
USB
Watch Buds 2
No
Watch Ultimate
No
Sensors
Watch Buds 2
Accelerometer, gyro, heart rate, SpO2
Watch Ultimate
Accelerometer, gyro, heart rate, barometer, compass, SpO2, thermometer (body temperature)
Other
Watch Buds 2
-
Watch Ultimate
BDS Satellite Messaging - China only
Type
Watch Buds 2
Li-Ion 410 mAh
Watch Ultimate
Li-Po 530 mAh
Charging
Watch Buds 2
Wireless
Watch Ultimate
Wireless
Colors
Watch Buds 2
Black, Silver
Watch Ultimate
Expedition Black, Voyage Blue, Green
Models
Watch Buds 2
LBA-B19
Watch Ultimate
CLB-B19
Price
Watch Buds 2
About 440 EUR
Watch Ultimate
About 740 EUR