Screen size
equal specsXDA Serra2.8"
XDA Zest2.8"
Quick verdict
XDA Zest leads the measured specs 3-1.
Measured wins
XDA Serra
1
spec wins
Ties
8
equal specs
XDA Zest
3
spec wins
Overall winner
Screen size
equal specsTechnology
XDA Serra
GSM / HSPA
XDA Zest
GSM / HSPA
2G bands
XDA Serra
GSM 850 / 900 / 1800 / 1900
XDA Zest
GSM 900 / 1800 / 1900
3G bands
XDA Serra
HSDPA 2100
XDA Zest
HSDPA 2100
Speed
XDA Serra
HSPA 7.2/0.384 Mbps
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU speed
RAM
Storage
Main camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
XDA Zest
HSPA 3.6/0.384 Mbps
Announced
XDA Serra
2008, July. Released 2008, September
XDA Zest
2008, October. Released 2008, November
Status
XDA Serra
Discontinued
XDA Zest
Discontinued
Dimensions
XDA Serra
102 x 51 x 18.1 mm (4.02 x 2.01 x 0.71 in)
XDA Zest
102 x 60.5 x 16.5 mm (4.02 x 2.38 x 0.65 in)
Weight
XDA Serra
165 g (5.82 oz)
XDA Zest
102.5 g (3.60 oz)
Keyboard
XDA Serra
QWERTY
XDA Zest
-
SIM
XDA Serra
Mini-SIM
XDA Zest
Mini-SIM
Type
XDA Serra
TFT resistive touchscreen, 65K colors
XDA Zest
TFT resistive touchscreen, 65K colors
Size
XDA Serra
2.8 inches, 24.3 cm2 (~46.7% screen-to-body ratio)
XDA Zest
2.8 inches, 24.3 cm2 (~39.3% screen-to-body ratio)
Resolution
XDA Serra
480 x 640 pixels, 4:3 ratio (~286 ppi density)
XDA Zest
480 x 640 pixels, 4:3 ratio (~286 ppi density)
Other
XDA Serra
Handwriting recognition
XDA Zest
Handwriting recognition
OS
XDA Serra
Microsoft Windows Mobile 6.1 Professional
XDA Zest
Microsoft Windows Mobile 6.1 Professional
Chipset
XDA Serra
Qualcomm MSM7201A
XDA Zest
-
CPU
XDA Serra
528 MHz ARM 11
XDA Zest
624MHz Marvell TavorP
GPU
XDA Serra
Adreno 130
XDA Zest
-
Card slot
XDA Serra
microSD (dedicated slot)
XDA Zest
microSDHC (dedicated slot)
Internal
XDA Serra
288MB RAM, 512MB ROM
XDA Zest
128MB RAM, 256MB ROM
Single
XDA Serra
3.15 MP, AF
XDA Zest
3.15 MP, AF
Features
XDA Serra
LED flash
XDA Zest
-
Video
XDA Serra
Yes
XDA Zest
Yes
Single
XDA Serra
VGA videocall camera
XDA Zest
VGA videocall camera
Video
XDA Serra
XDA Zest
Loudspeaker
XDA Serra
Yes
XDA Zest
Yes
3.5mm jack
XDA Serra
No
XDA Zest
No
WLAN
XDA Serra
Wi-Fi 802.11 b/g
XDA Zest
Wi-Fi 802.11 b/g
Bluetooth
XDA Serra
2.0, A2DP
XDA Zest
2.0, A2DP
Positioning
XDA Serra
GPS, A-GPS
XDA Zest
GPS, A-GPS, SiRF Star III chipset
Radio
XDA Serra
Stereo FM radio, RDS
XDA Zest
No
USB
XDA Serra
miniUSB
XDA Zest
miniUSB 1.1
Sensors
XDA Serra
Accelerometer
XDA Zest
Browser
XDA Serra
WAP 2.0/xHTML, HTML
XDA Zest
WAP 2.0/xHTML, HTML
Other
XDA Serra
MP3/WAV/WMA player MP4/WMV/3gp player Pocket Office Voice memo Predictive text input
XDA Zest
SiRF star III chipset Pocket Office Voice memo MP3 player Predictive text input
Type
XDA Serra
Removable Li-Ion 1340 mAh battery
XDA Zest
Removable Li-Ion 1300 mAh battery
Stand-by
XDA Serra
Up to 406 h
XDA Zest
Up to 260 h
Talk time
XDA Serra
Up to 8 h
XDA Zest
Up to 5 h
Colors
XDA Serra
Black
XDA Zest
Black