Screen size
M3061.8"
U53Winner: 2.0"+10%
Quick verdict
U53 leads the measured specs 2-1.
Measured wins
M306
1
spec wins
Ties
4
equal specs
U53
2
spec wins
Overall winner
Screen size
Technology
M306
GSM
U53
GSM
2G bands
M306
GSM 900 / 1800
U53
GSM 900 / 1800
GPRS
M306
Class 10
U53
Class 10
EDGE
M306
No
U53
No
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
Announced
M306
2010. Released 2010, May
U53
2010. Released 2010, April
Status
M306
Discontinued
U53
Discontinued
Dimensions
M306
110 x 43 x 13 mm (4.33 x 1.69 x 0.51 in)
U53
111 x 59.3 x 13.4 mm (4.37 x 2.33 x 0.53 in)
Weight
M306
-
U53
-
SIM
M306
Dual SIM (Mini-SIM, no dual stand-by)
U53
Dual SIM (Mini-SIM)
Other
M306
Flashlight
U53
-
Keyboard
M306
-
U53
QWERTY
Type
M306
TFT, 65K colors
U53
TFT, 65K colors
Size
M306
1.8 inches
U53
2.0 inches
Resolution
M306
U53
Card slot
M306
microSD (dedicated slot)
U53
microSD (dedicated slot)
Phonebook
M306
Yes
U53
Yes
Call records
M306
Yes
U53
Yes
Other
M306
No
U53
-
Loudspeaker
M306
Yes
U53
Yes
3.5mm jack
M306
No
U53
No
WLAN
M306
No
U53
No
Bluetooth
M306
No
U53
2.0
Positioning
M306
No
U53
No
Radio
M306
FM radio
U53
FM radio
USB
M306
No
U53
No
Sensors
M306
U53
Messaging
M306
SMS, MMS
U53
SMS, MMS
Browser
M306
WAP 2.0/xHTML
U53
WAP 2.0/xHTML
Games
M306
No
U53
No
Java
M306
No
U53
Yes, MIDP 2.0
Other
M306
Predictive text input
U53
MP3/MP4 player Yahoo and Skype apps Predictive text input
Type
M306
Removable Li-Ion 1000 mAh battery
U53
Removable Li-Ion 1000 mAh battery
Colors
M306
Black
U53
Black
Single
M306
-
U53
Yes
Video
M306
-
U53
No
Other
M306
-
U53
No