Screen size
GD900 Crystal3.0"
Q31Winner: 5.7"+47%
Quick verdict
Q31 leads the measured specs 12-2.
Measured wins
GD900 Crystal
2
spec wins
Ties
3
equal specs
Q31
12
spec wins
Overall winner
Screen size
Technology
GD900 Crystal
GSM / HSPA
Q31
GSM / HSPA / LTE
2G bands
GD900 Crystal
GSM 850 / 900 / 1800 / 1900
Q31
GSM 850 / 900 / 1800 / 1900
3G bands
GD900 Crystal
HSDPA 900 / 2100 , HSDPA 850 / 2100
Q31
HSDPA 850 / 900 / 1900 / 2100
Speed
GD900 Crystal
HSPA 7.2/0.384 Mbps
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
equal specs5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
Q31
HSPA, LTE
4G bands
GD900 Crystal
-
Q31
LTE
Announced
GD900 Crystal
2009, April. Released 2009, July
Q31
2020, September 17. Released 2020, September 25
Status
GD900 Crystal
Discontinued
Q31
Discontinued
Dimensions
GD900 Crystal
105 x 52.5 x 13.5 mm (4.13 x 2.07 x 0.53 in)
Q31
147.9 x 71 x 8.7 mm (5.82 x 2.80 x 0.34 in)
Weight
GD900 Crystal
127 g (4.48 oz)
Q31
145 g (5.11 oz)
SIM
GD900 Crystal
Mini-SIM
Q31
Nano-SIM
Other
GD900 Crystal
-
Q31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
GD900 Crystal
TFT
Q31
IPS LCD
Size
GD900 Crystal
3.0 inches, 25.6 cm2 (~46.5% screen-to-body ratio)
Q31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
GD900 Crystal
480 x 800 pixels, 5:3 ratio (~311 ppi density)
Q31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Protection
GD900 Crystal
Corning Gorilla Glass
Q31
-
Other
GD900 Crystal
S-Class Touch UI Transparent touch-sensitive keypad Gesture shortcut Handwriting recognition
Q31
-
Card slot
GD900 Crystal
microSDHC (dedicated slot)
Q31
microSDXC
Phonebook
GD900 Crystal
1000 contacts, Photocall
Q31
-
Call records
GD900 Crystal
Yes
Q31
-
Internal
GD900 Crystal
1.5GB
Q31
32GB 3GB RAM
Other
GD900 Crystal
-
Q31
eMMC 5.1
Single
GD900 Crystal
8 MP, AF
Q31
-
Features
GD900 Crystal
LED flash
Q31
LED flash, panorama, HDR
Video
GD900 Crystal
480p@30fps
Q31
1080p@30fps
Dual
GD900 Crystal
-
Q31
13 MP, f/1.8, 27mm (wide), 1/3.1", 1.12µm, PDAF 5 MP, f/2.2, 120˚ (ultrawide), 1/5.0", 1.12µm
Other
GD900 Crystal
Videocall camera
Q31
-
Single
GD900 Crystal
-
Q31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
GD900 Crystal
-
Q31
1080p@30fps
Loudspeaker
GD900 Crystal
Yes
Q31
Yes
3.5mm jack
GD900 Crystal
No
Q31
Yes
WLAN
GD900 Crystal
Wi-Fi 802.11 b/g
Q31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
GD900 Crystal
2.1, A2DP
Q31
5.0, A2DP, LE
Positioning
GD900 Crystal
No
Q31
GPS
Radio
GD900 Crystal
FM radio
Q31
No
USB
GD900 Crystal
microUSB 2.0
Q31
microUSB 2.0
NFC
GD900 Crystal
-
Q31
No
Sensors
GD900 Crystal
Accelerometer, proximity
Q31
Accelerometer
Messaging
GD900 Crystal
SMS, EMS, MMS, EMail, Instant Messaging
Q31
-
Browser
GD900 Crystal
WAP 2.0/xHTML, HTML
Q31
-
Games
GD900 Crystal
Yes, 2
Q31
-
Java
GD900 Crystal
Yes, MIDP 2.0
Q31
-
Other
GD900 Crystal
TV-out MP3/AAC/AAC+/WMA player DivX/XviD/MP4 player Organizer Document viewer (DOC, XLS, PDF) Voice memo Predictive text input
Q31
-
Type
GD900 Crystal
Removable Li-Ion 1000 mAh battery
Q31
Li-Ion 3000 mAh
Stand-by
GD900 Crystal
Up to 300 h
Q31
-
Talk time
GD900 Crystal
Up to 6 h (2G) / Up to 4 h (3G)
Q31
-
Colors
GD900 Crystal
Q31
Silver
SAR
GD900 Crystal
1.12 W/kg (head) 0.47 W/kg (body)
Q31
-
SAR EU
GD900 Crystal
0.60 W/kg (head)
Q31
-
Price
GD900 Crystal
About 130 EUR
Q31
About 150 EUR
Models
GD900 Crystal
-
Q31
LM-Q310N
OS
GD900 Crystal
-
Q31
Android 10
Chipset
GD900 Crystal
-
Q31
Mediatek MT6762 Helio P22 (12 nm)
CPU
GD900 Crystal
-
Q31
Octa-core 2.0 GHz Cortex-A53
GPU
GD900 Crystal
-
Q31
PowerVR GE8320