Screen size
Comet IIWinner: 2.2"+9.1%
Hydro2.0"
Quick verdict
Hydro leads the measured specs 7-5.
Measured wins
Comet II
5
spec wins
Ties
2
equal specs
Hydro
7
spec wins
Overall winner
Screen size
Technology
Comet II
GSM
Hydro
GSM
2G bands
Comet II
GSM 850 / 900 / 1800 / 1900 - SIM 1, GSM 850 / 900 / 1800 / 1900 - SIM 2
Hydro
GSM 850 / 900 / 1800 / 1900
GPRS
Comet II
Yes
Hydro
Yes
EDGE
Comet II
No
Hydro
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
SD card
equal specsStereo speakers
No
Announced
Comet II
2011, June
Hydro
2013. Released 2013
Status
Comet II
Discontinued
Hydro
Discontinued
Dimensions
Comet II
111.5 x 60 x 12.8 mm (4.39 x 2.36 x 0.50 in)
Hydro
114 x 54 x 11.8 mm (4.49 x 2.13 x 0.46 in)
Weight
Comet II
90 g (3.17 oz)
Hydro
85 g (3.00 oz)
Keyboard
Comet II
QWERTY
Hydro
-
SIM
Comet II
Dual SIM (Mini-SIM, dual stand-by)
Hydro
Yes
Other
Comet II
Flashlight
Hydro
IP54 dust protected and water resistant (water splashes) Flashlight
Type
Comet II
TFT, 65K colors
Hydro
TFT
Size
Comet II
2.2 inches, 15.2 cm2 (~22.8% screen-to-body ratio)
Hydro
2.0 inches, 12.6 cm2 (~20.5% screen-to-body ratio)
Resolution
Comet II
220 x 176 pixels (~128 ppi density)
Hydro
144 x 176 pixels (~114 ppi density)
Card slot
Comet II
microSD (dedicated slot)
Hydro
microSDHC (dedicated slot)
Phonebook
Comet II
500 contacts, Photocall
Hydro
500 contacts
Call records
Comet II
Yes
Hydro
100 entries
Single
Comet II
VGA
Hydro
1.3 MP
Video
Comet II
Hydro
Yes
Other
Comet II
No
Hydro
No
Loudspeaker
Comet II
Yes
Hydro
Yes
3.5mm jack
Comet II
Yes
Hydro
No
WLAN
Comet II
Wi-Fi 802.11 b/g/n
Hydro
No
Bluetooth
Comet II
Yes
Hydro
2.0
Positioning
Comet II
No
Hydro
No
Radio
Comet II
Stereo FM radio
Hydro
FM radio
USB
Comet II
miniUSB (charging only)
Hydro
microUSB 2.0
NFC
Comet II
-
Hydro
No
Sensors
Comet II
Hydro
Messaging
Comet II
SMS, MMS
Hydro
SMS, MMS
Browser
Comet II
WAP 2.0/xHTML
Hydro
-
Games
Comet II
Yes
Hydro
Yes
Java
Comet II
Yes
Hydro
No
Other
Comet II
TV app Organizer MP4 player MP3 player Predictive text input
Hydro
MP3/MP4 player
Type
Comet II
Removable Li-Ion 1050 mAh battery
Hydro
Li-Ion 500 mAh, removable
Stand-by
Comet II
Up to 200 h
Hydro
Up to 80 h
Talk time
Comet II
Up to 4 h 10 min
Hydro
Up to 5 h
Colors
Comet II
Black, Pink, Brown
Hydro
Black, White, Blue