Screen size
CrystalWinner: 3.5"+49%
Rock Bold1.8"
Quick verdict
Crystal leads the measured specs 7-2.
Measured wins
Crystal
7
spec wins
Overall winner
Ties
3
equal specs
Rock Bold
2
spec wins
Screen size
Technology
Crystal
GSM
Rock Bold
GSM
2G bands
Crystal
GSM 850 / 900 / 1800 / 1900 - SIM 1, GSM 850 / 900 / 1800 / 1900 - SIM 2
Rock Bold
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GPRS
Crystal
Yes
Rock Bold
Class 10
EDGE
Crystal
No
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
5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
Rock Bold
No
Announced
Crystal
2011, February. Released 2011, Q2
Rock Bold
2013. Released 2013
Status
Crystal
Discontinued
Rock Bold
Discontinued
Dimensions
Crystal
111.5 x 56.2 x 13.1 mm (4.39 x 2.21 x 0.52 in)
Rock Bold
103.2 x 45.2 x 14.5 mm (4.06 x 1.78 x 0.57 in)
Weight
Crystal
-
Rock Bold
46 g (w/out battery) (1.62 oz)
SIM
Crystal
Dual SIM (Mini-SIM, dual stand-by)
Rock Bold
Dual SIM (Mini-SIM)
Other
Crystal
Trackball Flashlight
Rock Bold
Flashlight
Type
Crystal
TFT, 65K colors
Rock Bold
TFT
Size
Crystal
3.5 inches, 34.9 cm2 (~55.6% screen-to-body ratio)
Rock Bold
1.8 inches, 10.2 cm2 (~21.9% screen-to-body ratio)
Resolution
Crystal
240 x 400 pixels, 5:3 ratio (~133 ppi density)
Rock Bold
128 x 160 pixels (~114 ppi density)
OS
Crystal
Android 2.2 (Froyo)
Rock Bold
-
Chipset
Crystal
Mediatek MT6516
Rock Bold
-
CPU
Crystal
416 MHz
Rock Bold
-
Card slot
Crystal
microSD (dedicated slot)
Rock Bold
microSD (dedicated slot)
Internal
Crystal
512MB 256MB
Rock Bold
-
Phonebook
Crystal
-
Rock Bold
500 contacts
Call records
Crystal
-
Rock Bold
20 dialed, 20 received, 20 missed calls
Single
Crystal
1.3 MP
Rock Bold
1.3 MP
Features
Crystal
LED flash
Rock Bold
-
Video
Crystal
Yes
Rock Bold
Yes
Single
Crystal
Yes
Rock Bold
-
Video
Crystal
Rock Bold
-
Other
Crystal
-
Rock Bold
No
Loudspeaker
Crystal
Yes
Rock Bold
Yes
3.5mm jack
Crystal
Yes
Rock Bold
No
WLAN
Crystal
Wi-Fi 802.11
Rock Bold
No
Bluetooth
Crystal
Yes
Rock Bold
No
Positioning
Crystal
GPS, A-GPS
Rock Bold
No
Radio
Crystal
Stereo FM radio
Rock Bold
Stereo FM radio
USB
Crystal
microUSB 2.0
Rock Bold
miniUSB (charging only)
NFC
Crystal
-
Rock Bold
No
Sensors
Crystal
Accelerometer
Rock Bold
Browser
Crystal
WAP 2.0/xHTML, HTML
Rock Bold
-
Other
Crystal
TV app Organizer MP4/H.264 player MP3/AAC+ player Predictive text input
Rock Bold
MP3/MP4 player Predictive text input
Messaging
Crystal
-
Rock Bold
SMS, MMS
Games
Crystal
-
Rock Bold
No
Java
Crystal
-
Rock Bold
No
Type
Crystal
Removable Li-Ion 1050 mAh battery
Rock Bold
Li-Ion 700 mAh, removable
Stand-by
Crystal
Up to 180 h
Rock Bold
Up to 180 h
Talk time
Crystal
Up to 5 h
Rock Bold
Up to 6 h
Colors
Crystal
Black, White
Rock Bold
Black, White, Red, Blue