Screen size
my231xWinner: 1.8"
my401Z—
Quick verdict
my231x leads the measured specs 4-2.
Measured wins
my231x
4
spec wins
Overall winner
Ties
3
equal specs
my401Z
2
spec wins
Screen size
Technology
my231x
GSM
my401Z
GSM
2G bands
my231x
GSM 900 / 1800
my401Z
GSM 900 / 1800 / 1900
GPRS
my231x
No
my401Z
Class 10
EDGE
my231x
No
my401Z
No
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
3.5mm jack
equal specsSD card
Stereo speakers
Announced
my231x
2008, February. Released 2008
my401Z
2007, July
Status
my231x
Discontinued
my401Z
Discontinued
Dimensions
my231x
106 x 46 x 12 mm (4.17 x 1.81 x 0.47 in)
my401Z
90 x 46 x 21 mm (3.54 x 1.81 x 0.83 in)
Weight
my231x
75 g (2.65 oz)
my401Z
90 g (3.17 oz)
SIM
my231x
Mini-SIM
my401Z
Mini-SIM
Type
my231x
CSTN, 65K colors
my401Z
CSTN, 65K colors
Size
my231x
1.8 inches, 10.2 cm2 (~20.9% screen-to-body ratio)
my401Z
Resolution
my231x
128 x 160 pixels (~114 ppi density)
my401Z
128 x 160 pixels
Card slot
my231x
No
my401Z
microSD (dedicated slot)
Phonebook
my231x
Yes
my401Z
12 fields, Photo call
Call records
my231x
20 dialed, 20 received, 20 missed calls
my401Z
20 dialed, 20 received, 20 missed calls
Internal
my231x
-
my401Z
37MB
Other
my231x
No
my401Z
-
Loudspeaker
my231x
Yes
my401Z
No
Alert types
my231x
Vibration; Polyphonic ringtones
my401Z
Vibration; Downloadable polyphonic ringtones
3.5mm jack
my231x
No
my401Z
No
WLAN
my231x
No
my401Z
No
Bluetooth
my231x
Yes
my401Z
1.2
Positioning
my231x
No
my401Z
No
Radio
my231x
No
my401Z
No
USB
my231x
Proprietary
my401Z
No
Sensors
my231x
my401Z
Messaging
my231x
SMS
my401Z
SMS, EMS, MMS
Browser
my231x
No
my401Z
WAP 2.0/xHTML
Games
my231x
Yes
my401Z
Yes
Java
my231x
No
my401Z
Yes, MIDP 2.0
Other
my231x
Predictive text input Organizer
my401Z
MP3/AAC player Predictive text input Organizer
Type
my231x
Removable Li-Ion battery
my401Z
Removable Li-Ion battery
Stand-by
my231x
Up to 450 h
my401Z
Up to 240 h
Talk time
my231x
Up to 6 h
my401Z
Up to 3 h 30 min
Colors
my231x
Black
my401Z
Silver
Single
my231x
-
my401Z
VGA
Video
my231x
-
my401Z
Yes
Other
my231x
-
my401Z
No