Screen size
my421x1.8"
my850CWinner: 2.0"+10%
Quick verdict
my850C leads the measured specs 5-3.
Measured wins
my421x
3
spec wins
Ties
3
equal specs
my850C
5
spec wins
Overall winner
Screen size
Technology
my421x
GSM
my850C
GSM / UMTS
2G bands
my421x
GSM 900 / 1800
my850C
GSM 900 / 1800 / 1900
GPRS
my421x
Yes
my850C
-
EDGE
my421x
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
my421x
-
my850C
UMTS 2100
Speed
my421x
-
my850C
Yes, 384 kbps
Announced
my421x
2008, February. Released 2008
my850C
2006, March
Status
my421x
Discontinued
my850C
Discontinued
Dimensions
my421x
107 x 47 x 10 mm (4.21 x 1.85 x 0.39 in)
my850C
96 x 49 x 16 mm (3.78 x 1.93 x 0.63 in)
Weight
my421x
81 g (2.86 oz)
my850C
95 g (3.35 oz)
SIM
my421x
Mini-SIM
my850C
Mini-SIM
Type
my421x
CSTN, 65K colors
my850C
TFT, 256K colors
Size
my421x
1.8 inches, 10.2 cm2 (~20.3% screen-to-body ratio)
my850C
2.0 inches, 12.4 cm2 (~26.3% screen-to-body ratio)
Resolution
my421x
128 x 160 pixels (~114 ppi density)
my850C
240 x 320 pixels, 4:3 ratio (~200 ppi density)
Other
my421x
Glossy effect
my850C
Second external mono display (96 x 64 pixels)
Card slot
my421x
microSD (dedicated slot)
my850C
microSD (dedicated slot)
Phonebook
my421x
Yes
my850C
Yes
Call records
my421x
20 dialed, 20 received, 20 missed calls
my850C
20 dialed, 20 received, 20 missed calls
Internal
my421x
-
my850C
64MB
Single
my421x
1.3 MP
my850C
2 MP
Video
my421x
Yes
my850C
Yes
Other
my421x
No
my850C
-
Single
my421x
-
my850C
VGA videocall camera
Video
my421x
-
my850C
Loudspeaker
my421x
Yes
my850C
No
Alert types
my421x
Vibration; Polyphonic ringtones
my850C
Vibration; Downloadable polyphonic ringtones
3.5mm jack
my421x
No
my850C
No
WLAN
my421x
No
my850C
No
Bluetooth
my421x
Yes
my850C
2.0, A2DP
Positioning
my421x
No
my850C
No
Radio
my421x
Stereo FM radio, RDS
my850C
No
USB
my421x
Proprietary
my850C
1.0
Sensors
my421x
my850C
Messaging
my421x
SMS, MMS
my850C
SMS, EMS, MMS, Email
Browser
my421x
WAP 2.0/xHTML
my850C
WAP 2.0/xHTML
Games
my421x
Yes
my850C
Yes
Java
my421x
Yes, MIDP 2.0
my850C
Yes, MIDP 2.0
Other
my421x
Music player Predictive text input Organizer
my850C
Video telephony & streaming MP3/AAC/AAC+/eAAC+ player Predictive text input Organizer Voice memo
Type
my421x
Removable Li-Ion battery
my850C
Removable Li-Ion battery
Stand-by
my421x
Up to 220 h
my850C
Up to 300 h
Talk time
my421x
Up to 3 h 40 min
my850C
Up to 3 h 30 min
Colors
my421x
Black
my850C
Black
Price
my421x
-
my850C
About 250 EUR