Screen size
W8578Winner: 3.5"+14%
X5253.0"
Quick verdict
W8578 leads the measured specs 5-3.
Measured wins
W8578
5
spec wins
Overall winner
Ties
5
equal specs
X525
3
spec wins
Screen size
Technology
W8578
GSM / HSPA
X525
GSM
2G bands
W8578
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
X525
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
W8578
HSDPA 900 / 2100
X525
-
Speed
W8578
HSPA 3.6/0.384 Mbps
X525
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
equal specsUSB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
-
GPRS
W8578
-
X525
Class 12
EDGE
W8578
-
X525
Yes
Announced
W8578
2014, April. Released 2014, April
X525
2011, Q3
Status
W8578
Discontinued
X525
Discontinued
Dimensions
W8578
116 x 60 x 21 mm (4.57 x 2.36 x 0.83 in)
X525
160 x 51 x 14.4 mm (6.30 x 2.01 x 0.57 in)
Weight
W8578
217 g (7.65 oz)
X525
108 g (3.81 oz)
SIM
W8578
Dual SIM
X525
Dual SIM (Mini-SIM, dual stand-by)
Type
W8578
TFT, 256K colors
X525
TFT resistive touchscreen, 256K colors
Size
W8578
3.5 inches, 34.9 cm2 (~50.1% screen-to-body ratio)
X525
3.0 inches, 25.6 cm2 (~31.4% screen-to-body ratio)
Resolution
W8578
480 x 800 pixels, 5:3 ratio (~267 ppi density)
X525
240 x 400 pixels, 5:3 ratio (~155 ppi density)
Other
W8578
Secondary TFT, 256K colors 240 x 320 pixels, 2.6 inches
X525
-
OS
W8578
Android 4.2 (Jelly Bean)
X525
-
Card slot
W8578
microSDHC (dedicated slot)
X525
microSDHC (dedicated slot)
Internal
W8578
512MB 256MB RAM
X525
44MB
Phonebook
W8578
-
X525
Yes, Photocall
Call records
W8578
-
X525
Yes
Single
W8578
5 MP
X525
3.15 MP
Features
W8578
LED flash
X525
LED flash
Video
W8578
Yes
X525
QCIF
Other
W8578
No
X525
No
Loudspeaker
W8578
Yes
X525
Yes
3.5mm jack
W8578
Yes
X525
Yes
WLAN
W8578
Wi-Fi 802.11 b/g
X525
No
Bluetooth
W8578
2.1, EDR
X525
2.1, A2DP
Positioning
W8578
No
X525
No
NFC
W8578
No
X525
-
Radio
W8578
FM radio
X525
Stereo FM radio, RDS
USB
W8578
microUSB 2.0
X525
miniUSB 2.0
Sensors
W8578
Accelerometer
X525
Other
W8578
SNS integration MP3/WAV/WMA/eAAC+ player MP4/H.263 player Document viewer Photo viewer Organizer Voice memo Predictive text input
X525
MP3/WAV/WMA/AAC+ player MP4/H.263 player Organizer Voice memo Predictive text input
Messaging
W8578
-
X525
SMS(threaded view), MMS, Email
Games
W8578
-
X525
Yes
Java
W8578
-
X525
Yes
Type
W8578
Li-Ion 2000 mAh, removable
X525
Removable Li-Ion 1530 mAh battery
Stand-by
W8578
Up to 850 h
X525
Up to 1080 h
Talk time
W8578
Up to 9 h
X525
Up to 14 h
Colors
W8578
Black
X525
Silver