Screen size
AX75—
SX66Winner: 3.5"
Quick verdict
SX66 leads the measured specs 4-2.
Measured wins
AX75
2
spec wins
Ties
3
equal specs
SX66
4
spec wins
Overall winner
Screen size
Technology
AX75
GSM
SX66
GSM
2G bands
AX75
GSM 900 / 1800 / 1900 , GSM 850 / 1800 / 1900 - US version
SX66
GSM 850 / 900 / 1800 / 1900
GPRS
AX75
Class 8
SX66
Class 10
EDGE
AX75
No
SX66
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
equal specsIP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
Stereo speakers
No
Announced
AX75
2005, Q1
SX66
2004, Q4
Status
AX75
Discontinued
SX66
Discontinued
Dimensions
AX75
106 x 47 x 18 mm, 75 cc (4.17 x 1.85 x 0.71 in)
SX66
125 x 71 x 18 mm (4.92 x 2.80 x 0.71 in)
Weight
AX75
76 g (2.68 oz)
SX66
210 g (7.41 oz)
SIM
AX75
Mini-SIM
SX66
Mini-SIM
Keyboard
AX75
-
SX66
QWERTY
Type
AX75
CSTN, 65K colors
SX66
TFT resistive touchscreen, 65K colors
Size
AX75
SX66
3.5 inches, 53 x 71 mm, 37.9 cm2 (~42.7% screen-to-body ratio)
Resolution
AX75
128 x 128 pixels, 7 lines, 1:1 ratio
SX66
240 x 320 pixels, 4:3 ratio (~114 ppi density)
Other
AX75
4-way navigation key Softkeys
SX66
Downloadable logos
Card slot
AX75
No
SX66
SDIO/MMC
Phonebook
AX75
500 x 12 fields
SX66
-
Call records
AX75
10 dialed, 10 received, 10 missed calls
SX66
-
Internal
AX75
1.5MB
SX66
128MB RAM
Other
AX75
100 short messages
SX66
-
Other
AX75
No
SX66
No
Loudspeaker
AX75
Yes
SX66
Yes
Alert types
AX75
Vibration; Downloadable polyphonic ringtones
SX66
Vibration; Downloadable polyphonic, MP3 ringtones
3.5mm jack
AX75
No
SX66
No
WLAN
AX75
No
SX66
Wi-Fi 802.11b
Bluetooth
AX75
No
SX66
Yes
Positioning
AX75
No
SX66
No
Infrared port
AX75
Yes
SX66
Yes
Radio
AX75
No
SX66
No
USB
AX75
Proprietary
SX66
Proprietary
Sensors
AX75
SX66
Messaging
AX75
SMS, EMS, MMS
SX66
-
Browser
AX75
WAP 1.2.1
SX66
HTML (PocketIE)
Games
AX75
Yes + downloadable
SX66
-
Java
AX75
Yes, MIDP 1.0
SX66
-
Other
AX75
Predictive text input Organizer Voice dial/voice command Optional VGA camera
SX66
Microsoft ActiveSync MP3/AAC player Predictive text input
Type
AX75
Removable Li-Ion 600 mAh battery
SX66
Removable Li-Ion battery
Stand-by
AX75
Up to 220 h
SX66
Up to 200 h
Talk time
AX75
Up to 5 h
SX66
Up to 4 h
Colors
AX75
2 - Ice Blue, Cream Stone
SX66
Silver
OS
AX75
-
SX66
Microsoft Windows Mobile 2003 SE PocketPC
CPU
AX75
-
SX66
Intel Xscale PXA272 520 MHz