Screen size
equal specsA5201.5"
Z21.5"
Quick verdict
Z2 leads the measured specs 4-1.
Measured wins
A520
1
spec wins
Ties
5
equal specs
Z2
4
spec wins
Overall winner
Screen size
equal specsTechnology
A520
GSM
Z2
GSM
2G bands
A520
GSM 900 / 1800 / 1900
Z2
GSM 900 / 1800 / 1900
GPRS
A520
Class 10
Z2
Class 10
EDGE
A520
No
Z2
No
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU 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
Announced
A520
2005, Q1
Z2
2005, Q1
Status
A520
Discontinued
Z2
Discontinued
Dimensions
A520
82.5 x 44.8 x 22.6 mm (3.25 x 1.76 x 0.89 in)
Z2
66 x 66 x 20 mm (2.60 x 2.60 x 0.79 in)
Weight
A520
96 g (3.39 oz)
Z2
106 g (3.74 oz)
SIM
A520
Mini-SIM
Z2
Mini-SIM
Type
A520
OLED, 65K colors
Z2
TFT, 256K colors
Size
A520
1.5 inches, 27 x 27 mm, 7.3 cm2 (~19.6% screen-to-body ratio)
Z2
1.5 inches, 27 x 27 mm, 7.3 cm2 (~16.7% screen-to-body ratio)
Resolution
A520
128 x 128 pixels, 1:1 ratio (~121 ppi density)
Z2
128 x 128 pixels, 1:1 ratio (~121 ppi density)
Other
A520
Second external OLED, 65K colors display (96 x 39 pixels) Wallpapers Downloadable pictures
Z2
Wallpapers Downloadable pictures
Card slot
A520
No
Z2
miniSD
Phonebook
A520
500 entries
Z2
500 entries
Call records
A520
10 dialed, 10 received, 10 missed calls
Z2
10 dialed, 10 received, 10 missed calls
Internal
A520
2MB
Z2
60MB
Single
A520
VGA
Z2
1.3 MP
Video
A520
No
Z2
No
Features
A520
-
Z2
LED flash
Other
A520
No
Z2
No
Loudspeaker
A520
No
Z2
Yes
Alert types
A520
Vibration; Downloadable polyphonic ringtones, composer
Z2
Vibration; Downloadable polyphonic, MP3 ringtones, composer
3.5mm jack
A520
No
Z2
No
Other
A520
-
Z2
3D surround sound
WLAN
A520
No
Z2
No
Bluetooth
A520
No
Z2
No
Positioning
A520
No
Z2
No
Radio
A520
No
Z2
FM radio
USB
A520
Proprietary
Z2
Proprietary
Sensors
A520
Z2
Messaging
A520
SMS, EMS, MMS
Z2
SMS, EMS, MMS
Browser
A520
WAP 2.0/xHTML
Z2
WAP 2.0/xHTML
Games
A520
Yes
Z2
Yes
Java
A520
Yes, MIDP 1.0
Z2
Yes
Other
A520
Webcamera function iTap Photo editor Organizer
Z2
MP3 player Changeable front and back covers iTap Voice memo Organizer
Type
A520
Removable Li-Ion 700 mAh battery
Z2
Removable Li-Ion 1000 mAh battery
Stand-by
A520
Up to 120 h
Z2
Up to 150 h
Talk time
A520
Up to 3 h
Z2
Up to 5 h
Colors
A520
Black, White
Z2
Vanilla White, Berry Blue, Wasabi Green, Bubblegum Pink