Screen size
CX75Winner: 1.9"
ST55—
Quick verdict
CX75 leads the measured specs 7-1.
Measured wins
CX75
7
spec wins
Overall winner
Ties
3
equal specs
ST55
1
spec wins
Screen size
Technology
CX75
GSM
ST55
GSM
2G bands
CX75
GSM 900 / 1800 / 1900
ST55
GSM 900 / 1800
GPRS
CX75
Class 10
ST55
Class 10
EDGE
CX75
No
ST55
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
Stereo speakers
Announced
CX75
2005, Q1
ST55
2003, Q3
Status
CX75
Discontinued
ST55
Discontinued
Dimensions
CX75
112 x 48 x 19 mm, 90 cc (4.41 x 1.89 x 0.75 in)
ST55
99 x 47 x 22 mm (3.90 x 1.85 x 0.87 in)
Weight
CX75
98 g (3.46 oz)
ST55
87 g (3.07 oz)
SIM
CX75
Mini-SIM
ST55
Mini-SIM
Type
CX75
TFT, 256K colors
ST55
TFT, 65K colors
Size
CX75
1.9 inches, 28 x 38 mm, 11.2 cm2 (~20.8% screen-to-body ratio)
ST55
Resolution
CX75
132 x 176 pixels, 4:3 ratio (~116 ppi density)
ST55
120 x 160 pixels, 7 lines, 4:3 ratio
Other
CX75
-
ST55
5-way navi key
Card slot
CX75
RS-MMC
ST55
No
Phonebook
CX75
1000 x 20 fields, Photo call
ST55
255 x 15 entries
Call records
CX75
10 dialed, 10 received, 10 missed calls
ST55
10 dialed, 20 received, 20 missed calls
Internal
CX75
14MB
ST55
-
Other
CX75
-
ST55
1.2 MB for photos 1.3 MB for MMS 1.1 MB for email messages 100 short messages
Single
CX75
1.3 MP
ST55
VGA
Video
CX75
QCIF
ST55
No
Other
CX75
No
ST55
No
Loudspeaker
CX75
Yes
ST55
Yes
Alert types
CX75
Vibration; Downloadable polyphonic, MP3 ringtones
ST55
Vibration; Downloadable polyphonic ringtones
3.5mm jack
CX75
No
ST55
No
WLAN
CX75
No
ST55
No
Bluetooth
CX75
1.2
ST55
No
Positioning
CX75
No
ST55
No
Infrared port
CX75
Yes
ST55
-
Radio
CX75
No
ST55
No
USB
CX75
Proprietary
ST55
Sensors
CX75
ST55
Messaging
CX75
SMS, MMS, EMail, Instant Messaging
ST55
SMS, EMS, MMS, Email
Browser
CX75
WAP 2.0/xHTML
ST55
WAP 2.0/xHTML
Games
CX75
Yes + downloadable
ST55
3 - Wacko, Toggle, Tetris + Java
Java
CX75
Yes, MIDP 2.0
ST55
No
Other
CX75
Push and Talk MP3/AAC player Predictive text input Organizer SyncML
ST55
Predictive text input Organizer User profiles SyncML
Clock
CX75
-
ST55
Yes
Alarm
CX75
-
ST55
Yes
Type
CX75
Removable Li-Ion 750 mAh battery
ST55
Removable Li-Ion 750 mAh battery (EBA-595)
Stand-by
CX75
Up to 250 h
ST55
Up to 140 h
Talk time
CX75
Up to 5 h
ST55
Up to 4 h 30 min
Colors
CX75
Titan grey, Sand silver
ST55