Screen size
HydroWinner: 2.0"+10%
Rock Mini1.8"
Quick verdict
Hydro leads the measured specs 7-2.
Measured wins
Hydro
7
spec wins
Overall winner
Ties
5
equal specs
Rock Mini
2
spec wins
Screen size
Technology
Hydro
GSM
Rock Mini
GSM
2G bands
Hydro
GSM 850 / 900 / 1800 / 1900
Rock Mini
GSM 850 / 900 / 1800 / 1900 - SIM 1, GSM 850 / 900 / 1800 / 1900 - SIM 2
GPRS
Hydro
Yes
Rock Mini
Class 10
EDGE
Hydro
No
Rock Mini
Resolution
Refresh 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
USB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
No
Announced
Hydro
2013. Released 2013
Rock Mini
2012, March
Status
Hydro
Discontinued
Rock Mini
Discontinued
Dimensions
Hydro
114 x 54 x 11.8 mm (4.49 x 2.13 x 0.46 in)
Rock Mini
103.2 x 45.2 x 14.5 mm (4.06 x 1.78 x 0.57 in)
Weight
Hydro
85 g (3.00 oz)
Rock Mini
46 g without battery (1.62 oz)
SIM
Hydro
Yes
Rock Mini
Dual SIM (Mini-SIM)
Other
Hydro
IP54 dust protected and water resistant (water splashes) Flashlight
Rock Mini
Flashlight
Type
Hydro
TFT
Rock Mini
TFT
Size
Hydro
2.0 inches, 12.6 cm2 (~20.5% screen-to-body ratio)
Rock Mini
1.8 inches, 10.2 cm2 (~21.9% screen-to-body ratio)
Resolution
Hydro
144 x 176 pixels (~114 ppi density)
Rock Mini
128 x 160 pixels (~114 ppi density)
Card slot
Hydro
microSDHC (dedicated slot)
Rock Mini
microSD (dedicated slot)
Phonebook
Hydro
500 contacts
Rock Mini
500 contacts
Call records
Hydro
100 entries
Rock Mini
20 dialed, 20 received, 20 missed calls
Single
Hydro
1.3 MP
Rock Mini
1.3 MP
Video
Hydro
Yes
Rock Mini
Yes
Other
Hydro
No
Rock Mini
No
Loudspeaker
Hydro
Yes
Rock Mini
Yes
3.5mm jack
Hydro
No
Rock Mini
No
WLAN
Hydro
No
Rock Mini
No
Bluetooth
Hydro
2.0
Rock Mini
No
Positioning
Hydro
No
Rock Mini
No
NFC
Hydro
No
Rock Mini
-
Radio
Hydro
FM radio
Rock Mini
Stereo FM radio
USB
Hydro
microUSB 2.0
Rock Mini
miniUSB (charging only)
Sensors
Hydro
Rock Mini
Messaging
Hydro
SMS, MMS
Rock Mini
SMS, MMS
Games
Hydro
Yes
Rock Mini
Yes
Java
Hydro
No
Rock Mini
No
Other
Hydro
MP3/MP4 player
Rock Mini
MP3/MP4 player Predictive text input
Type
Hydro
Li-Ion 500 mAh, removable
Rock Mini
Removable Li-Ion 700 mAh battery
Stand-by
Hydro
Up to 80 h
Rock Mini
Up to 180 h
Talk time
Hydro
Up to 5 h
Rock Mini
Up to 6 h
Colors
Hydro
Black, White, Blue
Rock Mini
Black, White, Red, Silver