Screen size
Jest IIWinner: 2.4"+21%
U-40001.9"
Quick verdict
Jest II leads the measured specs 6-3.
Measured wins
Jest II
6
spec wins
Overall winner
Ties
3
equal specs
U-4000
3
spec wins
Screen size
Technology
Jest II
GSM / CDMA / UMTS / CDMA2000
U-4000
GSM / UMTS
2G bands
Jest II
CDMA 800 / 1900 , GSM 850 / 900 / 1800 / 1900
U-4000
GSM 900 / 1800 / 1900
3G bands
Jest II
CDMA2000 1x , UMTS 2100
U-4000
UMTS 2100
Speed
Jest II
EV-DO Rev.0, 153.2 Kbps
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
U-4000
Yes, 384 kbps
Announced
Jest II
2011, October. Released 2011, October
U-4000
2006, November
Status
Jest II
Discontinued
U-4000
Discontinued
Dimensions
Jest II
94 x 66 x 15 mm (3.70 x 2.60 x 0.59 in)
U-4000
95 x 43 x 16.5 mm (3.74 x 1.69 x 0.65 in)
Weight
Jest II
116 g (4.09 oz)
U-4000
92 g (3.25 oz)
Keyboard
Jest II
QWERTY
U-4000
-
SIM
Jest II
Mini-SIM
U-4000
Mini-SIM
Type
Jest II
TFT, 256K colors
U-4000
TFT, 260K colors
Size
Jest II
2.4 inches, 17.8 cm2 (~28.8% screen-to-body ratio)
U-4000
1.9 inches, 11.4 cm2 (~27.8% screen-to-body ratio)
Resolution
Jest II
320 x 240 pixels, 4:3 ratio (~167 ppi density)
U-4000
176 x 220 pixels (~148 ppi density)
Card slot
Jest II
microSDHC (dedicated slot)
U-4000
microSD (dedicated slot)
Phonebook
Jest II
1000 entries, Photocall
U-4000
Yes
Call records
Jest II
Yes
U-4000
20 dialed, 20 received, 20 missed calls
Internal
Jest II
-
U-4000
30MB
Single
Jest II
2 MP
U-4000
1.3 MP
Video
Jest II
Yes
U-4000
Yes
Other
Jest II
No
U-4000
-
Single
Jest II
-
U-4000
VGA videocall camera
Video
Jest II
-
U-4000
Loudspeaker
Jest II
Yes
U-4000
Yes
3.5mm jack
Jest II
No
U-4000
No
Other
Jest II
2.5 mm audio jack
U-4000
-
Alert types
Jest II
-
U-4000
Vibration; Downloadable polyphonic, MP3 ringtones
WLAN
Jest II
No
U-4000
No
Bluetooth
Jest II
3.0, A2DP
U-4000
1.1
Positioning
Jest II
GPS, VZ Navigator
U-4000
No
Radio
Jest II
No
U-4000
No
USB
Jest II
microUSB
U-4000
2.0
Sensors
Jest II
U-4000
Messaging
Jest II
SMS, MMS, Email, IM
U-4000
SMS, MMS, Email, Instant Messaging
Games
Jest II
Yes
U-4000
No
Java
Jest II
No
U-4000
Yes, MIDP 2.0
Other
Jest II
SNS integration MP3/WAV/WMA/eAAC+ player MP4/H.263 player Organizer Voice memo/dial/commands Predictive text input
U-4000
Video telephony MP3/AAC/AAC+/AAC++ player File manager Photo editing
Browser
Jest II
-
U-4000
WAP 2.0/xHTML
Type
Jest II
Removable Li-Ion 950 mAh battery
U-4000
Removable Li-Ion 820 mAh battery
Stand-by
Jest II
Up to 322 h
U-4000
-
Talk time
Jest II
Up to 4 h 54 min
U-4000
-
Colors
Jest II
Black
U-4000
Silver black
SAR
Jest II
1.15 W/kg (head) 1.17 W/kg (body)
U-4000
-