Screen size
equal specsC811.8"
CF611.8"
Quick verdict
C81 leads the measured specs 7-0.
Measured wins
C81
7
spec wins
Overall winner
Ties
5
equal specs
CF61
0
spec wins
Screen size
equal specsTechnology
C81
GSM
CF61
GSM
2G bands
C81
GSM 900 / 1800 / 1900
CF61
GSM 900 / 1800 / 1900
GPRS
C81
Class 10
CF61
Class 10
EDGE
C81
Class 10
CF61
No
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront 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
Announced
C81
2006, March
CF61
2006, March
Status
C81
Discontinued
CF61
Discontinued
Dimensions
C81
104 x 46.5 x 17.7 mm (4.09 x 1.83 x 0.70 in)
CF61
88 x 46 x 23 mm, 80 cc (3.46 x 1.81 x 0.91 in)
Weight
C81
90 g (3.17 oz)
CF61
99 g (3.49 oz)
SIM
C81
Mini-SIM
CF61
Mini-SIM
Type
C81
TFT, 256K colors
CF61
TFT, 256K colors
Size
C81
1.8 inches, 27 x 36 mm, 10.0 cm2 (~20.7% screen-to-body ratio)
CF61
1.8 inches, 29 x 35 mm, 10.2 cm2 (~25.2% screen-to-body ratio)
Resolution
C81
132 x 176 pixels, 4:3 ratio (~122 ppi density)
CF61
128 x 160 pixels (~114 ppi density)
Other
C81
-
CF61
Second external 4K colors display, CSTN (96 x 64 pixels) 5-way navigation key
Card slot
C81
RS-MMC
CF61
microSD (dedicated slot)
Phonebook
C81
Yes, Photo call
CF61
1000 x 20 fields, Photo call
Call records
C81
10 dialed, 10 received, 10 missed calls
CF61
10 dialed, 10 received, 10 missed calls
Internal
C81
23MB
CF61
1.5MB
Single
C81
1.3 MP
CF61
1.3 MP
Video
C81
Yes
CF61
No
Other
C81
No
CF61
No
Loudspeaker
C81
No
CF61
Yes
Alert types
C81
Vibration; Downloadable polyphonic, MP3, AAC ringtones
CF61
Vibration; Downloadable polyphonic, MP3 ringtones
3.5mm jack
C81
No
CF61
No
Other
C81
-
CF61
3D surround sound
WLAN
C81
No
CF61
No
Bluetooth
C81
1.2, A2DP
CF61
Yes
Positioning
C81
No
CF61
No
Radio
C81
No
CF61
No
USB
C81
2.0
CF61
1.1
Sensors
C81
CF61
Messaging
C81
SMS, MMS, EMail, Instant Messaging
CF61
SMS, EMS, MMS
Browser
C81
WAP 2.0/xHTML
CF61
WAP 2.0/xHTML
Games
C81
Yes + downloadable
CF61
Yes + downloadable
Java
C81
Yes, MIDP 2.0
CF61
Yes, MIDP 2.0
Other
C81
MP3/AAC player Predictive text input Organizer Voice memo
CF61
MP3/AAC/WMA player Predictive text input Organizer Exchangeable front cover Voice memo
Type
C81
Removable Li-Ion 820 mAh battery
CF61
Removable Li-Ion 750 mAh battery
Stand-by
C81
Up to 300 h
CF61
Up to 225 h
Talk time
C81
Up to 5 h
CF61
Up to 3 h
Colors
C81
Piano Black
CF61
Silver