Screen size
M520—
M528—
Quick verdict
M520 and M528 are close on the measured specs.
Measured wins
M520
1
spec wins
Ties
5
equal specs
M528
1
spec wins
Screen size
Resolution
equal specsTechnology
M520
GSM
M528
GSM
2G bands
M520
GSM 900 / 1800
M528
GSM 900 / 1800
GPRS
M520
Class 10
M528
Class 10
EDGE
M520
No
M528
No
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
equal specsStereo speakers
Announced
M520
2004, Q4
M528
2004, Q4
Status
M520
Discontinued
M528
Discontinued
Dimensions
M520
76 x 43 x 22 mm (2.99 x 1.69 x 0.87 in)
M528
76 x 43 x 22 mm (2.99 x 1.69 x 0.87 in)
Weight
M520
75 g (2.65 oz)
M528
72 g (2.54 oz)
SIM
M520
Mini-SIM
M528
Mini-SIM
Type
M520
CSTN, 65K colors
M528
CSTN, 65K colors
Size
M520
M528
Resolution
M520
128 x 128 pixels, 1:1 ratio
M528
128 x 128 pixels, 1:1 ratio
Other
M520
Second external CSTN display (96 x 64 pixels), 65K colors Downloadable pictures
M528
Second external CSTN display (96 x 64 pixels), 65K colors Downloadable pictures
Card slot
M520
No
M528
No
Phonebook
M520
500 entries, Photo call
M528
500 entries, Photo call
Call records
M520
10 dialed, 10 received, 10 missed calls
M528
10 dialed, 10 received, 10 missed calls
Internal
M520
3MB
M528
2MB
Single
M520
VGA
M528
VGA
Video
M520
Yes
M528
Yes
Other
M520
No
M528
No
Loudspeaker
M520
No
M528
No
Alert types
M520
Vibration; Downloadable polyphonic ringtones
M528
Vibration; Downloadable polyphonic ringtones
3.5mm jack
M520
No
M528
No
WLAN
M520
No
M528
No
Bluetooth
M520
No
M528
No
Positioning
M520
No
M528
No
Radio
M520
No
M528
No
USB
M520
M528
Proprietary
Sensors
M520
M528
Messaging
M520
SMS, MMS
M528
SMS, MMS
Browser
M520
WAP 1.2.1
M528
WAP 1.2.1
Games
M520
5 + downloadable
M528
Yes
Java
M520
Yes, MIDP 1.0
M528
Yes, MIDP 1.0
Other
M520
Predictive text input Organizer World Time
M528
Predictive text input Organizer Photo editor
Type
M520
Removable Li-Ion 680 mAh battery
M528
Removable Li-Ion battery
Stand-by
M520
Up to 120 h
M528
-
Talk time
M520
Up to 2 h
M528
-
Colors
M520
Crystal Silver and Sapphire Blue
M528
Silver, Red, Blue