Screen size
Pro ZWinner: 2.4"+8.3%
Shell2.2"
Quick verdict
Pro Z leads the measured specs 5-1.
Measured wins
Pro Z
5
spec wins
Overall winner
Ties
6
equal specs
Shell
1
spec wins
Screen size
Technology
Pro Z
GSM
Shell
GSM
2G bands
Pro Z
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Shell
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GPRS
Pro Z
Class 12
Shell
Class 12
EDGE
Pro Z
Yes
Shell
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
SD card
equal specsStereo speakers
No
Announced
Pro Z
2012, March. Released 2012, June
Shell
2011, June. Released 2011, August
Status
Pro Z
Discontinued
Shell
Discontinued
Dimensions
Pro Z
115 x 60 x 11 mm (4.53 x 2.36 x 0.43 in)
Shell
111.5 x 60 x 14.3 mm (4.39 x 2.36 x 0.56 in)
Weight
Pro Z
90 g (3.17 oz)
Shell
240 g (8.47 oz)
Keyboard
Pro Z
QWERTY
Shell
QWERTY
SIM
Pro Z
Dual SIM (dual stand-by)
Shell
Dual SIM (dual stand-by)
Type
Pro Z
TFT resistive touchscreen
Shell
TFT
Size
Pro Z
2.4 inches, 17.8 cm2 (~25.9% screen-to-body ratio)
Shell
2.2 inches, 15.0 cm2 (~22.4% screen-to-body ratio)
Resolution
Pro Z
320 x 240 pixels, 4:3 ratio (~167 ppi density)
Shell
320 x 240 pixels, 4:3 ratio (~182 ppi density)
Card slot
Pro Z
microSDHC (dedicated slot)
Shell
microSDHC (dedicated slot), 2 GB included
Phonebook
Pro Z
500 entries
Shell
500 entries
Call records
Pro Z
Yes
Shell
Yes
Internal
Pro Z
64MB
Shell
128MB
Single
Pro Z
1.3 MP
Shell
1.3 MP
Video
Pro Z
Yes
Shell
Yes
Other
Pro Z
No
Shell
No
Loudspeaker
Pro Z
Yes
Shell
Yes
3.5mm jack
Pro Z
Yes
Shell
No
WLAN
Pro Z
Wi-Fi 802.11 b/g
Shell
No
Bluetooth
Pro Z
3.0
Shell
2.1, EDR
Positioning
Pro Z
No
Shell
No
NFC
Pro Z
No
Shell
No
Radio
Pro Z
FM radio
Shell
FM radio
USB
Pro Z
microUSB
Shell
microUSB
Sensors
Pro Z
Shell
Messaging
Pro Z
SMS, MMS, Email, Push Email, IM
Shell
SMS, MMS, Email, Push Email, IM
Games
Pro Z
Yes
Shell
Yes
Java
Pro Z
Yes, MIDP 2.0
Shell
Yes, MIDP 2.0
Other
Pro Z
MP3/MP4 player Organizer Voice memo
Shell
MP3/MP4 player Organizer Voice memo
Type
Pro Z
Li-Ion 1000 mAh battery
Shell
Li-Ion 1000 mAh battery
Stand-by
Pro Z
Up to 240 h
Shell
Up to 150 h
Talk time
Pro Z
Up to 3 h
Shell
Up to 4 h
Colors
Pro Z
Black, White
Shell
Black, Silver