Screen size
Comet2.8"
PrismWinner: 3.5"+20%
Quick verdict
Prism leads the measured specs 6-1.
Measured wins
Comet
1
spec wins
Ties
5
equal specs
Prism
6
spec wins
Overall winner
Screen size
Technology
Comet
GSM / HSPA
Prism
GSM / HSPA
2G bands
Comet
GSM 850 / 900 / 1800 / 1900
Prism
GSM 850 / 900 / 1800 / 1900
3G bands
Comet
HSDPA 900 / 1700 / 2100
Prism
HSDPA 850 / 1700 / 1900 / 2100
Speed
Comet
HSPA 7.2/0.384 Mbps
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
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
Prism
HSPA
Announced
Comet
2010, November. Released 2010, November
Prism
2012, May. Released 2012, May
Status
Comet
Discontinued
Prism
Discontinued
Dimensions
Comet
104.1 x 55.9 x 12.7 mm (4.10 x 2.20 x 0.5 in)
Prism
116.3 x 60.2 x 12.2 mm (4.58 x 2.37 x 0.48 in)
Weight
Comet
102.1 g (3.60 oz)
Prism
125 g (4.41 oz)
SIM
Comet
Mini-SIM
Prism
Mini-SIM
Type
Comet
TFT, 256K colors
Prism
TFT, 256K colors
Size
Comet
2.8 inches, 24.3 cm2 (~41.7% screen-to-body ratio)
Prism
3.5 inches, 36.5 cm2 (~52.1% screen-to-body ratio)
Resolution
Comet
240 x 320 pixels, 4:3 ratio (~143 ppi density)
Prism
320 x 480 pixels, 3:2 ratio (~165 ppi density)
OS
Comet
Android 2.2 (Froyo)
Prism
Android 2.3.5 (Gingerbread)
Chipset
Comet
Qualcomm MSM7225 Snapdragon S1
Prism
-
CPU
Comet
528 MHz ARM 11
Prism
600 MHz
GPU
Comet
No
Prism
-
Card slot
Comet
microSDHC (dedicated slot), 2 GB included
Prism
microSDHC (dedicated slot)
Internal
Comet
-
Prism
512MB
Single
Comet
3.15 MP
Prism
3.15 MP
Video
Comet
CIF
Prism
Yes
Other
Comet
No
Prism
No
Loudspeaker
Comet
Yes
Prism
Yes
3.5mm jack
Comet
Yes
Prism
Yes
WLAN
Comet
Wi-Fi 802.11 b/g/n, hotspot
Prism
Wi-Fi 802.11 b/g, hotspot
Bluetooth
Comet
2.0, A2DP
Prism
2.1, A2DP, EDR
Positioning
Comet
GPS, A-GPS
Prism
GPS, A-GPS
Radio
Comet
FM radio
Prism
No
USB
Comet
microUSB 2.0
Prism
microUSB 2.0
Sensors
Comet
Accelerometer
Prism
Accelerometer, proximity, compass
Browser
Comet
HTML, Adobe Flash
Prism
-
Other
Comet
MP3/WMA/eAAC+ player MP4/H.264 player Organizer Photo viewer/editor Voice memo/dial/commands Predictive text input (Swype)
Prism
MP3/WAV/eAAC+ player MP4/H.264 player Organizer Document viewer Voice memo/dial Predictive text input (Swype)
Type
Comet
Removable Li-Ion 1200 mAh battery
Prism
Removable Li-Ion 1400 mAh battery
Stand-by
Comet
Up to 288 h
Prism
Up to 400 h
Talk time
Comet
Up to 9 h
Prism
Up to 6 h 30 min
Colors
Comet
Black
Prism
Black
Price
Comet
About 150 EUR
Prism
About 170 EUR