Screen size
M320+1.8"
U53Winner: 2.0"+10%
Quick verdict
U53 leads the measured specs 2-1.
Measured wins
M320+
1
spec wins
Ties
4
equal specs
U53
2
spec wins
Overall winner
Screen size
Technology
M320+
GSM
U53
GSM
2G bands
M320+
GSM 900 / 1800
U53
GSM 900 / 1800
GPRS
M320+
Class 10
U53
Class 10
EDGE
M320+
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
M320+
2010. Released 2010
U53
2010. Released 2010, April
Status
M320+
Discontinued
U53
Discontinued
Dimensions
M320+
108.2 x 45.6 x 12 mm (4.26 x 1.80 x 0.47 in)
U53
111 x 59.3 x 13.4 mm (4.37 x 2.33 x 0.53 in)
Weight
M320+
-
U53
-
SIM
M320+
Dual SIM (Mini-SIM, no dual stand-by)
U53
Dual SIM (Mini-SIM)
Other
M320+
Flashlight
U53
-
Keyboard
M320+
-
U53
QWERTY
Type
M320+
TFT, 65K colors
U53
TFT, 65K colors
Size
M320+
1.8 inches
U53
2.0 inches
Resolution
M320+
U53
Card slot
M320+
microSD (dedicated slot)
U53
microSD (dedicated slot)
Phonebook
M320+
Yes
U53
Yes
Call records
M320+
Yes
U53
Yes
Single
M320+
Yes
U53
Yes
Video
M320+
No
U53
No
Other
M320+
No
U53
No
Loudspeaker
M320+
Yes
U53
Yes
3.5mm jack
M320+
No
U53
No
WLAN
M320+
No
U53
No
Bluetooth
M320+
No
U53
2.0
Positioning
M320+
No
U53
No
Radio
M320+
FM radio
U53
FM radio
USB
M320+
No
U53
No
Sensors
M320+
U53
Messaging
M320+
SMS, MMS
U53
SMS, MMS
Browser
M320+
WAP 2.0/xHTML
U53
WAP 2.0/xHTML
Games
M320+
No
U53
No
Java
M320+
No
U53
Yes, MIDP 2.0
Other
M320+
MP3 player Predictive text input
U53
MP3/MP4 player Yahoo and Skype apps Predictive text input
Type
M320+
Removable Li-Ion 1000 mAh battery
U53
Removable Li-Ion 1000 mAh battery
Colors
M320+
Black
U53
Black