Screen size
W8578Winner: 3.5"+37%
X3122.2"
Quick verdict
W8578 leads the measured specs 9-2.
Measured wins
W8578
9
spec wins
Overall winner
Ties
2
equal specs
X312
2
spec wins
Screen size
Technology
W8578
GSM / HSPA
X312
GSM
2G bands
W8578
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
X312
GSM 900 / 1800 / 1900
3G bands
W8578
HSDPA 900 / 2100
X312
-
Speed
W8578
HSPA 3.6/0.384 Mbps
X312
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
-
GPRS
W8578
-
X312
Class 12
EDGE
W8578
-
X312
No
Announced
W8578
2014, April. Released 2014, April
X312
2010, April. Released 2010, April
Status
W8578
Discontinued
X312
Discontinued
Dimensions
W8578
116 x 60 x 21 mm (4.57 x 2.36 x 0.83 in)
X312
111 x 46.6 x 14.2 mm (4.37 x 1.83 x 0.56 in)
Weight
W8578
217 g (7.65 oz)
X312
101 g (3.56 oz)
SIM
W8578
Dual SIM
X312
Mini-SIM
Type
W8578
TFT, 256K colors
X312
TFT, 256K colors
Size
W8578
3.5 inches, 34.9 cm2 (~50.1% screen-to-body ratio)
X312
2.2 inches, 15.0 cm2 (~29.0% screen-to-body ratio)
Resolution
W8578
480 x 800 pixels, 5:3 ratio (~267 ppi density)
X312
240 x 320 pixels, 4:3 ratio (~182 ppi density)
Other
W8578
Secondary TFT, 256K colors 240 x 320 pixels, 2.6 inches
X312
-
OS
W8578
Android 4.2 (Jelly Bean)
X312
-
Card slot
W8578
microSDHC (dedicated slot)
X312
microSD (dedicated slot)
Internal
W8578
512MB 256MB RAM
X312
5MB
Phonebook
W8578
-
X312
1000 entries, Photocall
Call records
W8578
-
X312
Yes
Single
W8578
5 MP
X312
2 MP
Features
W8578
LED flash
X312
-
Video
W8578
Yes
X312
176x144@15fps
Other
W8578
No
X312
No
Loudspeaker
W8578
Yes
X312
Yes
3.5mm jack
W8578
Yes
X312
No
WLAN
W8578
Wi-Fi 802.11 b/g
X312
No
Bluetooth
W8578
2.1, EDR
X312
2.0, A2DP
Positioning
W8578
No
X312
No
NFC
W8578
No
X312
-
Radio
W8578
FM radio
X312
FM radio, RDS
USB
W8578
microUSB 2.0
X312
miniUSB 1.1
Sensors
W8578
Accelerometer
X312
Other
W8578
SNS integration MP3/WAV/WMA/eAAC+ player MP4/H.263 player Document viewer Photo viewer Organizer Voice memo Predictive text input
X312
MP3/WAV/AAC+ player MP4/H.263 player Organizer Voice memo Predictive text input
Messaging
W8578
-
X312
SMS(threaded view), MMS, Email
Browser
W8578
-
X312
WAP 2.0/xHTML
Games
W8578
-
X312
Yes + downloadable
Java
W8578
-
X312
Yes, MIDP 2.0
Type
W8578
Li-Ion 2000 mAh, removable
X312
Removable Li-Ion 1050 mAh battery
Stand-by
W8578
Up to 850 h
X312
Up to 744 h
Talk time
W8578
Up to 9 h
X312
Up to 8 h 30 min
Colors
W8578
Black
X312
Grey