Screen size
K-JAMWinner: 2.8"+21%
SP4m2.2"
Quick verdict
K-JAM and SP4m are close on the measured specs.
Measured wins
K-JAM
3
spec wins
Ties
5
equal specs
SP4m
3
spec wins
Screen size
Technology
K-JAM
GSM
SP4m
GSM
2G bands
K-JAM
GSM 850 / 900 / 1800 / 1900
SP4m
GSM 900 / 1800 / 1900
GPRS
K-JAM
Class 10
SP4m
Class 10
EDGE
K-JAM
Class 10
SP4m
Resolution
equal specsRefresh 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
No
Announced
K-JAM
2005, September
SP4m
2005, September
Status
K-JAM
Discontinued
SP4m
Discontinued
Dimensions
K-JAM
108 x 58 x 23.7 mm (4.25 x 2.28 x 0.93 in)
SP4m
109 x 48 x 19 mm (4.29 x 1.89 x 0.75 in)
Weight
K-JAM
160 g (5.64 oz)
SP4m
100 g (3.53 oz)
Keyboard
K-JAM
QWERTY
SP4m
-
SIM
K-JAM
Mini-SIM
SP4m
Mini-SIM
Type
K-JAM
TFT resistive touchscreen, 65K colors
SP4m
TFT, 65K colors
Size
K-JAM
2.8 inches, 42 x 57 mm, 24.3 cm2 (~38.8% screen-to-body ratio)
SP4m
2.2 inches, 33 x 45 mm, 15.0 cm2 (~28.6% screen-to-body ratio)
Resolution
K-JAM
240 x 320 pixels, 2.8 inches, 4:3 ratio (~143 ppi density)
SP4m
240 x 320 pixels, 4:3 ratio (~182 ppi density)
OS
K-JAM
Microsoft Windows Mobile 5.0 PocketPC
SP4m
Microsoft Windows Mobile 5.0 Smartphone
Chipset
K-JAM
TI OMAP 850
SP4m
TI OMAP 850
CPU
K-JAM
200 MHz ARM926EJ-S
SP4m
200 MHz ARM926EJ-S
Card slot
K-JAM
miniSD, up to 2 GB
SP4m
miniSD
Internal
K-JAM
64MB RAM, 128MB ROM
SP4m
64MB RAM, 64MB ROM
Single
K-JAM
1.3 MP
SP4m
1.3 MP
Features
K-JAM
LED flash
SP4m
-
Video
K-JAM
Yes
SP4m
Yes
Other
K-JAM
No
SP4m
No
Loudspeaker
K-JAM
Yes
SP4m
Yes
Alert types
K-JAM
Vibration; Downloadable polyphonic, MP3 ringtones
SP4m
Vibration; Downloadable polyphonic, MP3 ringtones
3.5mm jack
K-JAM
No
SP4m
No
WLAN
K-JAM
Wi-Fi 802.11b/g
SP4m
No
Bluetooth
K-JAM
2.0
SP4m
1.2
Positioning
K-JAM
No
SP4m
No
Infrared port
K-JAM
Yes
SP4m
Yes
Radio
K-JAM
No
SP4m
No
USB
K-JAM
miniUSB
SP4m
miniUSB
Sensors
K-JAM
SP4m
Browser
K-JAM
WAP 2.0/xHTML, HTML (PocketIE)
SP4m
WAP 2.0/xHTML, HTML (PocketIE)
Other
K-JAM
Microsoft ActiveSync Pocket Office MP3/AAC player
SP4m
Microsoft ActiveSync MP3/AAC player Predictive text input
Type
K-JAM
Removable Li-Po 1250 mAh battery
SP4m
Removable Li-Po 1150 mAh battery
Stand-by
K-JAM
Up to 200 h
SP4m
Up to 150 h
Talk time
K-JAM
Up to 5 h
SP4m
Up to 3 h
Colors
K-JAM
Stylish black
SP4m
Silver
Price
K-JAM
About 280 EUR
SP4m
About 130 EUR