Screen size
U9150Winner: 2.4"+38%
Watch Buds 21.5"
Quick verdict
Watch Buds 2 leads the measured specs 7-5.
Measured wins
U9150
5
spec wins
Ties
2
equal specs
Watch Buds 2
7
spec wins
Overall winner
Screen size
Technology
U9150
GSM / HSPA
Watch Buds 2
No cellular connectivity
2G bands
U9150
GSM 900 / 1800 / 1900
Watch Buds 2
N/A
3G bands
U9150
HSDPA 850 / 1900
Watch Buds 2
N/A
Speed
U9150
HSPA 3.6/0.384 Mbps
Watch Buds 2
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
equal specsSD card
Stereo speakers
No
4G bands
U9150
-
Watch Buds 2
N/A
GPRS
U9150
-
Watch Buds 2
No
EDGE
U9150
-
Watch Buds 2
No
Announced
U9150
2009, February. Released 2009, August
Watch Buds 2
2026, April 20
Status
U9150
Discontinued
Watch Buds 2
Available. Released 2026, April 20
Dimensions
U9150
-
Watch Buds 2
47 x 47 x 14.7 mm (1.85 x 1.85 x 0.58 in)
Weight
U9150
-
Watch Buds 2
54.5 g (1.90 oz)
Keyboard
U9150
QWERTY
Watch Buds 2
-
SIM
U9150
Mini-SIM
Watch Buds 2
No
Build
U9150
-
Watch Buds 2
Titanium alloy frame, glass-fiber reinforced plastic back
Other
U9150
-
Watch Buds 2
Built-in wireless earbuds housed beneath the display; charging from the watch Compatible with standard 22mm straps
Type
U9150
TFT, 256K colors
Watch Buds 2
LTPO AMOLED, 3000 nits (peak)
Size
U9150
2.4 inches, 17.8 cm2
Watch Buds 2
1.5 inches
Resolution
U9150
320 x 240 pixels, 4:3 ratio (~167 ppi density)
Watch Buds 2
466 x 466 pixels (~310 ppi density)
Card slot
U9150
microSD (dedicated slot)
Watch Buds 2
No
Phonebook
U9150
1000 entries, Photocall
Watch Buds 2
-
Call records
U9150
20 dialed, 20 received, 20 missed calls
Watch Buds 2
-
Single
U9150
2 MP
Watch Buds 2
-
Video
U9150
Yes
Watch Buds 2
-
Other
U9150
CIF
Watch Buds 2
-
Loudspeaker
U9150
Yes
Watch Buds 2
No
3.5mm jack
U9150
No
Watch Buds 2
No
WLAN
U9150
No
Watch Buds 2
No
Bluetooth
U9150
1.2, A2DP
Watch Buds 2
5.2, A2DP, LE
Positioning
U9150
No
Watch Buds 2
GPS, GLONASS, GALILEO, BDS
Radio
U9150
FM radio
Watch Buds 2
No
USB
U9150
2.0
Watch Buds 2
No
NFC
U9150
-
Watch Buds 2
Yes
Sensors
U9150
Watch Buds 2
Accelerometer, gyro, heart rate, SpO2
Messaging
U9150
SMS, MMS, Email, Push EMail, IM
Watch Buds 2
-
Browser
U9150
WAP 2.0/xHTML
Watch Buds 2
-
Games
U9150
Yes
Watch Buds 2
-
Java
U9150
Yes, MIDP 2.0
Watch Buds 2
-
Other
U9150
MP3/eAAC/MP4/H.263 player Organizer Office document viewer Voice memo Predictive text input
Watch Buds 2
-
Type
U9150
Removable Li-Ion 1300 mAh battery
Watch Buds 2
Li-Ion 410 mAh
Charging
U9150
-
Watch Buds 2
Wireless
Colors
U9150
Black
Watch Buds 2
Black, Silver
Models
U9150
-
Watch Buds 2
LBA-B19
Price
U9150
-
Watch Buds 2
About 440 EUR
OS
U9150
-
Watch Buds 2
HarmonyOS
Other
U9150
-
Watch Buds 2
No