Screen size
W8578Winner: 3.5"+20%
X7122.8"
Quick verdict
W8578 leads the measured specs 6-2.
Measured wins
W8578
6
spec wins
Overall winner
Ties
5
equal specs
X712
2
spec wins
Screen size
Technology
W8578
GSM / HSPA
X712
GSM
2G bands
W8578
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
X712
GSM 900 / 1800 / 1900
3G bands
W8578
HSDPA 900 / 2100
X712
-
Speed
W8578
HSPA 3.6/0.384 Mbps
X712
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
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
-
GPRS
W8578
-
X712
Class 12
EDGE
W8578
-
X712
Yes
Announced
W8578
2014, April. Released 2014, April
X712
2010, July. Released 2010, July
Status
W8578
Discontinued
X712
Discontinued
Dimensions
W8578
116 x 60 x 21 mm (4.57 x 2.36 x 0.83 in)
X712
105.8 x 51.5 x 16.7 mm (4.17 x 2.03 x 0.66 in)
Weight
W8578
217 g (7.65 oz)
X712
138 g (4.87 oz)
SIM
W8578
Dual SIM
X712
Dual SIM (Mini-SIM, dual stand-by)
Type
W8578
TFT, 256K colors
X712
AMOLED, 56K colors
Size
W8578
3.5 inches, 34.9 cm2 (~50.1% screen-to-body ratio)
X712
2.8 inches, 22.3 cm2 (~41.0% screen-to-body ratio)
Resolution
W8578
480 x 800 pixels, 5:3 ratio (~267 ppi density)
X712
240 x 400 pixels, 5:3 ratio (~167 ppi density)
Other
W8578
Secondary TFT, 256K colors 240 x 320 pixels, 2.6 inches
X712
External display
OS
W8578
Android 4.2 (Jelly Bean)
X712
-
Card slot
W8578
microSDHC (dedicated slot)
X712
microSDHC (dedicated slot)
Internal
W8578
512MB 256MB RAM
X712
30MB
Phonebook
W8578
-
X712
Yes, Photocall
Call records
W8578
-
X712
Yes
Single
W8578
5 MP
X712
5 MP, AF
Features
W8578
LED flash
X712
LED flash
Video
W8578
Yes
X712
480p@30fps
Other
W8578
No
X712
No
Loudspeaker
W8578
Yes
X712
Yes
3.5mm jack
W8578
Yes
X712
Yes
WLAN
W8578
Wi-Fi 802.11 b/g
X712
No
Bluetooth
W8578
2.1, EDR
X712
2.0, A2DP
Positioning
W8578
No
X712
No
NFC
W8578
No
X712
-
Radio
W8578
FM radio
X712
Stereo FM radio, RDS
USB
W8578
microUSB 2.0
X712
miniUSB 2.0
Sensors
W8578
Accelerometer
X712
Fingerprint (front-mounted)
Other
W8578
SNS integration MP3/WAV/WMA/eAAC+ player MP4/H.263 player Document viewer Photo viewer Organizer Voice memo Predictive text input
X712
MP3/WAV/AAC+ player MP4/H.263 player Organizer Voice memo Predictive text input
Messaging
W8578
-
X712
SMS, MMS, Email
Browser
W8578
-
X712
WAP 2.0/xHTML, HTML
Games
W8578
-
X712
Yes
Java
W8578
-
X712
Yes, MIDP 2.0
Type
W8578
Li-Ion 2000 mAh, removable
X712
Removable Li-Ion 1050 mAh battery
Stand-by
W8578
Up to 850 h
X712
Up to 744 h
Talk time
W8578
Up to 9 h
X712
Up to 8 h
Colors
W8578
Black
X712
Black, White, Brown