Screen size
A31—
SFG75Winner: 2.0"
Quick verdict
SFG75 leads the measured specs 6-2.
Measured wins
A31
2
spec wins
Ties
2
equal specs
SFG75
6
spec wins
Overall winner
Screen size
Technology
A31
GSM
SFG75
GSM / UMTS
2G bands
A31
GSM 900 / 1800 , GSM 850 / 1900 - US version
SFG75
GSM 900 / 1800
GPRS
A31
Class 8
SFG75
-
EDGE
A31
No
SFG75
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
A31
-
SFG75
UMTS 2100
Speed
A31
-
SFG75
Yes, 384 kbps
Announced
A31
2005, November
SFG75
2005, Sep
Status
A31
Discontinued
SFG75
Discontinued
Dimensions
A31
102 x 46 x 17.6 mm, 75 cc (4.02 x 1.81 x 0.69 in)
SFG75
90 x 45 x 24 mm, 97 cc (3.54 x 1.77 x 0.94 in)
Weight
A31
85 g (3.00 oz)
SFG75
110 g (3.88 oz)
SIM
A31
Mini-SIM
SFG75
Mini-SIM
Type
A31
CSTN, 65K colors
SFG75
TFT, 256K colors
Size
A31
SFG75
2.0 inches, 30 x 40 mm, 12.6 cm2 (~31.1% screen-to-body ratio)
Resolution
A31
128 x 128 pixels, 1:1 ratio
SFG75
176 x 220 pixels (~141 ppi density)
Other
A31
-
SFG75
Second CSTN display (96 x 96 pixels), 65K colors Wallpapers Downloadable pictures
Card slot
A31
No
SFG75
miniSD
Phonebook
A31
Yes
SFG75
Yes, Photo call
Call records
A31
10 dialed, 10 received, 10 missed calls
SFG75
10 dialed, 10 received, 10 missed calls
Internal
A31
1.5MB
SFG75
32MB
Other
A31
No
SFG75
-
Loudspeaker
A31
Yes
SFG75
No
Alert types
A31
Vibration; Polyphonic(32) ringtones
SFG75
Vibration; Downloadable polyphonic, MP3 ringtones
3.5mm jack
A31
No
SFG75
No
WLAN
A31
No
SFG75
No
Bluetooth
A31
No
SFG75
Yes
Positioning
A31
No
SFG75
No
Radio
A31
No
SFG75
No
USB
A31
No
SFG75
Proprietary
Infrared port
A31
-
SFG75
Yes
Sensors
A31
SFG75
Messaging
A31
SMS, EMS, MMS
SFG75
SMS, MMS, Email
Browser
A31
WAP 1.2.1
SFG75
WAP 2.0/xHTML
Games
A31
Yes + downloadable
SFG75
Yes
Java
A31
Yes, MIDP 1.0
SFG75
Yes, MIDP 2.0
Other
A31
Predictive text input Organizer
SFG75
Video telephony MP3/MP4 player Predictive text input Organizer
Type
A31
Removable Li-Ion 820 mAh battery
SFG75
Removable Li-Ion 840 mAh battery
Stand-by
A31
Up to 270 h
SFG75
Up to 250 h
Talk time
A31
Up to 5 h
SFG75
Up to 3 h
Colors
A31
Anthracite, Ruby Red
SFG75
Silver Black
Single
A31
-
SFG75
1.3 MP
Features
A31
-
SFG75
LED flash
Video
A31
-
SFG75
Yes
Other
A31
-
SFG75
CIF videocall camera