Screen size
my400X—
my730cWinner: 2.0"
Quick verdict
my730c leads the measured specs 6-2.
Measured wins
my400X
2
spec wins
Ties
2
equal specs
my730c
6
spec wins
Overall winner
Screen size
Technology
my400X
GSM
my730c
GSM / UMTS
2G bands
my400X
GSM 900 / 1800
my730c
GSM 900 / 1800 / 1900
GPRS
my400X
Class 10
my730c
-
EDGE
my400X
No
my730c
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
-
3G bands
my400X
-
my730c
UMTS 2100
Speed
my400X
-
my730c
Yes, 384 kbps
Announced
my400X
2006, Q1
my730c
2008, August. Released 2008, Q4
Status
my400X
Discontinued
my730c
Discontinued
Dimensions
my400X
105 x 46 x 14 mm (4.13 x 1.81 x 0.55 in)
my730c
96 x 49 x 16 mm (3.78 x 1.93 x 0.63 in)
Weight
my400X
85 g (3.00 oz)
my730c
95 g (3.35 oz)
SIM
my400X
Mini-SIM
my730c
Mini-SIM
Type
my400X
CSTN, 65K colors
my730c
TFT, 256K colors
Size
my400X
my730c
2.0 inches, 12.4 cm2 (~26.3% screen-to-body ratio)
Resolution
my400X
128 x 160 pixels
my730c
240 x 320 pixels, 4:3 ratio (~200 ppi density)
Other
my400X
-
my730c
Secondary external display Dedicated music keys
Card slot
my400X
No
my730c
microSD (dedicated slot)
Phonebook
my400X
12 fields, Photo call
my730c
1000 contacts, Photocall
Call records
my400X
20 dialed, 20 received, 20 missed calls
my730c
20 dialed, 20 received, 20 missed calls
Internal
my400X
3.2MB
my730c
54MB
Other
my400X
200 SMS messages
my730c
-
Single
my400X
VGA
my730c
2 MP
Video
my400X
Yes
my730c
Yes
Other
my400X
No
my730c
No
Loudspeaker
my400X
No
my730c
Yes
Alert types
my400X
Vibration; Downloadable polyphonic ringtones
my730c
-
3.5mm jack
my400X
No
my730c
No
WLAN
my400X
No
my730c
No
Bluetooth
my400X
No
my730c
Yes
Positioning
my400X
No
my730c
No
Infrared port
my400X
Yes
my730c
-
Radio
my400X
No
my730c
No
USB
my400X
No
my730c
miniUSB
Sensors
my400X
my730c
Messaging
my400X
SMS, EMS, MMS
my730c
SMS, MMS
Browser
my400X
WAP 2.0/xHTML
my730c
WAP 2.0/xHTML
Games
my400X
Yes
my730c
Yes
Java
my400X
Yes, MIDP 2.0
my730c
Yes, MIDP 2.0
Other
my400X
Predictive text input Organizer
my730c
MP3/MP4 player Organizer Voice memo Predictive text input
Type
my400X
Removable Li-Ion 850 mAh battery
my730c
Removable Li-Ion 920 mAh battery
Stand-by
my400X
Up to 350 h
my730c
Up to 300 h
Talk time
my400X
Up to 4 h
my730c
Up to 4 h
Colors
my400X
Silver
my730c
Black