Screen size
my521x1.9"
my850CWinner: 2.0"+5%
Quick verdict
my850C leads the measured specs 5-3.
Measured wins
my521x
3
spec wins
Ties
3
equal specs
my850C
5
spec wins
Overall winner
Screen size
Technology
my521x
GSM
my850C
GSM / UMTS
2G bands
my521x
GSM 900 / 1800 / 1900
my850C
GSM 900 / 1800 / 1900
GPRS
my521x
Yes
my850C
-
EDGE
my521x
No
my850C
Resolution
Refresh rate
Peak brightness
Pixel density
CPU 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
equal specsStereo speakers
-
3G bands
my521x
-
my850C
UMTS 2100
Speed
my521x
-
my850C
Yes, 384 kbps
Announced
my521x
2008, July
my850C
2006, March
Status
my521x
Discontinued
my850C
Discontinued
Dimensions
my521x
107 x 46 x 10 mm (4.21 x 1.81 x 0.39 in)
my850C
96 x 49 x 16 mm (3.78 x 1.93 x 0.63 in)
Weight
my521x
90 g (3.17 oz)
my850C
95 g (3.35 oz)
SIM
my521x
Mini-SIM
my850C
Mini-SIM
Type
my521x
TFT, 65K colors
my850C
TFT, 256K colors
Size
my521x
1.9 inches, 11.4 cm2 (~23.1% screen-to-body ratio)
my850C
2.0 inches, 12.4 cm2 (~26.3% screen-to-body ratio)
Resolution
my521x
128 x 160 pixels (~108 ppi density)
my850C
240 x 320 pixels, 4:3 ratio (~200 ppi density)
Other
my521x
-
my850C
Second external mono display (96 x 64 pixels)
Card slot
my521x
microSD (dedicated slot)
my850C
microSD (dedicated slot)
Phonebook
my521x
Yes
my850C
Yes
Call records
my521x
20 dialed, 20 received, 20 missed calls
my850C
20 dialed, 20 received, 20 missed calls
Internal
my521x
10MB
my850C
64MB
Single
my521x
1.3 MP
my850C
2 MP
Video
my521x
Yes
my850C
Yes
Other
my521x
No
my850C
-
Single
my521x
-
my850C
VGA videocall camera
Video
my521x
-
my850C
Loudspeaker
my521x
No
my850C
No
Alert types
my521x
Vibration; Polyphonic(32) ringtones
my850C
Vibration; Downloadable polyphonic ringtones
3.5mm jack
my521x
No
my850C
No
WLAN
my521x
No
my850C
No
Bluetooth
my521x
Yes
my850C
2.0, A2DP
Positioning
my521x
No
my850C
No
Radio
my521x
No
my850C
No
USB
my521x
Proprietary
my850C
1.0
Sensors
my521x
my850C
Messaging
my521x
SMS, EMS, MMS
my850C
SMS, EMS, MMS, Email
Browser
my521x
WAP 2.0/xHTML
my850C
WAP 2.0/xHTML
Games
my521x
Yes
my850C
Yes
Java
my521x
Yes, MIDP 2.0
my850C
Yes, MIDP 2.0
Other
my521x
MP3/AAC player Predictive text input Organizer
my850C
Video telephony & streaming MP3/AAC/AAC+/eAAC+ player Predictive text input Organizer Voice memo
Type
my521x
Removable Li-Ion battery
my850C
Removable Li-Ion battery
Stand-by
my521x
Up to 200 h
my850C
Up to 300 h
Talk time
my521x
Up to 3 h
my850C
Up to 3 h 30 min
Colors
my521x
Black,Silver
my850C
Black
Price
my521x
-
my850C
About 250 EUR