Screen size
Duo2.2"
Jest IIWinner: 2.4"+8.3%
Quick verdict
Duo leads the measured specs 6-3.
Measured wins
Duo
6
spec wins
Overall winner
Ties
3
equal specs
Jest II
3
spec wins
Screen size
Technology
Duo
GSM / HSPA
Jest II
GSM / CDMA / UMTS / CDMA2000
2G bands
Duo
GSM 850 / 900 / 1800 / 1900
Jest II
CDMA 800 / 1900 , GSM 850 / 900 / 1800 / 1900
3G bands
Duo
HSDPA 850 / 1900
Jest II
CDMA2000 1x , UMTS 2100
Speed
Duo
HSPA
Resolution
equal specsRefresh 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
SD card
equal specsStereo speakers
Jest II
EV-DO Rev.0, 153.2 Kbps
Announced
Duo
2007, October. Released 2007, October
Jest II
2011, October. Released 2011, October
Status
Duo
Discontinued
Jest II
Discontinued
Dimensions
Duo
102 x 50 x 19.9 mm (4.02 x 1.97 x 0.78 in)
Jest II
94 x 66 x 15 mm (3.70 x 2.60 x 0.59 in)
Weight
Duo
110 g (3.88 oz)
Jest II
116 g (4.09 oz)
Keyboard
Duo
QWERTY
Jest II
QWERTY
SIM
Duo
Mini-SIM
Jest II
Mini-SIM
Other
Duo
Dual slide design
Jest II
-
Type
Duo
TFT, 256K colors
Jest II
TFT, 256K colors
Size
Duo
2.2 inches, 15.0 cm2 (~29.4% screen-to-body ratio)
Jest II
2.4 inches, 17.8 cm2 (~28.8% screen-to-body ratio)
Resolution
Duo
240 x 320 pixels, 4:3 ratio (~182 ppi density)
Jest II
320 x 240 pixels, 4:3 ratio (~167 ppi density)
OS
Duo
Windows Mobile 6 Standard
Jest II
-
CPU
Duo
Marvell PXA270 416 MHz
Jest II
-
Card slot
Duo
microSD (dedicated slot)
Jest II
microSDHC (dedicated slot)
Internal
Duo
64MB RAM, 128MB ROM
Jest II
-
Phonebook
Duo
-
Jest II
1000 entries, Photocall
Call records
Duo
-
Jest II
Yes
Single
Duo
1.3 MP
Jest II
2 MP
Video
Duo
No
Jest II
Yes
Other
Duo
No
Jest II
No
Loudspeaker
Duo
Yes
Jest II
Yes
Alert types
Duo
Vibration; Downloadable polyphonic, MP3, WMA, WAV ringtones
Jest II
-
3.5mm jack
Duo
Yes
Jest II
No
Other
Duo
-
Jest II
2.5 mm audio jack
WLAN
Duo
No
Jest II
No
Bluetooth
Duo
1.2, A2DP
Jest II
3.0, A2DP
Positioning
Duo
No
Jest II
GPS, VZ Navigator
Radio
Duo
No
Jest II
No
USB
Duo
1.1
Jest II
microUSB
Sensors
Duo
Jest II
Browser
Duo
WAP 2.0/xHTML, HTML (PocketIE)
Jest II
-
Other
Duo
Pocket Office Voice memo MP3/AAC/AAC+/WMA/OGG/AMR player WMV/MP4 player File manager
Jest II
SNS integration MP3/WAV/WMA/eAAC+ player MP4/H.263 player Organizer Voice memo/dial/commands Predictive text input
Messaging
Duo
-
Jest II
SMS, MMS, Email, IM
Games
Duo
-
Jest II
Yes
Java
Duo
-
Jest II
No
Type
Duo
Removable Li-Po 1320 mAh battery
Jest II
Removable Li-Ion 950 mAh battery
Stand-by
Duo
Up to 240 h
Jest II
Up to 322 h
Talk time
Duo
Up to 3 h
Jest II
Up to 4 h 54 min
Colors
Duo
Black
Jest II
Black
Price
Duo
About 110 EUR
Jest II
-
SAR
Duo
-
Jest II
1.15 W/kg (head) 1.17 W/kg (body)