Screen size
U9130 CompassWinner: 2.4"+38%
Watch Buds 21.5"
Quick verdict
U9130 Compass and Watch Buds 2 are close on the measured specs.
Measured wins
U9130 Compass
6
spec wins
Ties
2
equal specs
Watch Buds 2
6
spec wins
Screen size
Technology
U9130 Compass
GSM / HSPA
Watch Buds 2
No cellular connectivity
2G bands
U9130 Compass
GSM 850 / 900 / 1800 / 1900
Watch Buds 2
N/A
3G bands
U9130 Compass
HSDPA 850 / 1900 / 2100
Watch Buds 2
N/A
Speed
U9130 Compass
HSPA 3.6/0.384 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
equal specsSD card
Stereo speakers
Watch Buds 2
No
4G bands
U9130 Compass
-
Watch Buds 2
N/A
GPRS
U9130 Compass
-
Watch Buds 2
No
EDGE
U9130 Compass
-
Watch Buds 2
No
Announced
U9130 Compass
2009, December. Released 2010, Q1
Watch Buds 2
2026, April 20
Status
U9130 Compass
Discontinued
Watch Buds 2
Available. Released 2026, April 20
Dimensions
U9130 Compass
114.5 x 61 x 13.5 mm (4.51 x 2.40 x 0.53 in)
Watch Buds 2
47 x 47 x 14.7 mm (1.85 x 1.85 x 0.58 in)
Weight
U9130 Compass
102 g (3.60 oz)
Watch Buds 2
54.5 g (1.90 oz)
Keyboard
U9130 Compass
QWERTY
Watch Buds 2
-
SIM
U9130 Compass
Mini-SIM
Watch Buds 2
No
Build
U9130 Compass
-
Watch Buds 2
Titanium alloy frame, glass-fiber reinforced plastic back
Other
U9130 Compass
-
Watch Buds 2
Built-in wireless earbuds housed beneath the display; charging from the watch Compatible with standard 22mm straps
Type
U9130 Compass
TFT, 256K colors
Watch Buds 2
LTPO AMOLED, 3000 nits (peak)
Size
U9130 Compass
2.4 inches, 17.8 cm2 (~25.5% screen-to-body ratio)
Watch Buds 2
1.5 inches
Resolution
U9130 Compass
320 x 240 pixels, 4:3 ratio (~167 ppi density)
Watch Buds 2
466 x 466 pixels (~310 ppi density)
Chipset
U9130 Compass
Qualcomm QSC6270
Watch Buds 2
-
OS
U9130 Compass
-
Watch Buds 2
HarmonyOS
Card slot
U9130 Compass
microSDHC (dedicated slot)
Watch Buds 2
No
Phonebook
U9130 Compass
1000 entries, Photocall
Watch Buds 2
-
Call records
U9130 Compass
Yes
Watch Buds 2
-
Internal
U9130 Compass
40MB 128MB RAM 256MB ROM
Watch Buds 2
-
Single
U9130 Compass
3.15 MP
Watch Buds 2
-
Video
U9130 Compass
Yes
Watch Buds 2
-
Other
U9130 Compass
No
Watch Buds 2
-
Loudspeaker
U9130 Compass
Yes
Watch Buds 2
No
3.5mm jack
U9130 Compass
No
Watch Buds 2
No
WLAN
U9130 Compass
No
Watch Buds 2
No
Bluetooth
U9130 Compass
2.0, A2DP, EDR
Watch Buds 2
5.2, A2DP, LE
Positioning
U9130 Compass
GPS, A-GPS
Watch Buds 2
GPS, GLONASS, GALILEO, BDS
Radio
U9130 Compass
FM radio
Watch Buds 2
No
USB
U9130 Compass
2.0
Watch Buds 2
No
NFC
U9130 Compass
-
Watch Buds 2
Yes
Sensors
U9130 Compass
Watch Buds 2
Accelerometer, gyro, heart rate, SpO2
Messaging
U9130 Compass
SMS, MMS, Email
Watch Buds 2
-
Browser
U9130 Compass
WAP 2.0/xHTML, HTML
Watch Buds 2
-
Games
U9130 Compass
Yes
Watch Buds 2
-
Java
U9130 Compass
Yes, MIDP 2.0
Watch Buds 2
-
Other
U9130 Compass
MP3/WAV/eAAC player MP4/H.264 player Organizer Predictive text input
Watch Buds 2
-
Type
U9130 Compass
Removable Li-Ion 1250 mAh battery
Watch Buds 2
Li-Ion 410 mAh
Stand-by
U9130 Compass
Up to 350 h
Watch Buds 2
-
Talk time
U9130 Compass
Up to 4 h
Watch Buds 2
-
Charging
U9130 Compass
-
Watch Buds 2
Wireless
Colors
U9130 Compass
Pearl White
Watch Buds 2
Black, Silver
Models
U9130 Compass
-
Watch Buds 2
LBA-B19
Price
U9130 Compass
-
Watch Buds 2
About 440 EUR
Other
U9130 Compass
-
Watch Buds 2
No