Screen size
W7253.2"
W8578Winner: 3.5"+8.6%
Quick verdict
W8578 leads the measured specs 6-2.
Measured wins
W725
2
spec wins
Ties
5
equal specs
W8578
6
spec wins
Overall winner
Screen size
Technology
W725
GSM / HSPA
W8578
GSM / HSPA
2G bands
W725
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
W8578
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
W725
HSDPA 2100 - SIM 1 only
W8578
HSDPA 900 / 2100
Speed
W725
HSPA 3.6/0.384 Mbps
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
equal specsUSB
equal specs5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
W8578
HSPA 3.6/0.384 Mbps
Announced
W725
2011, Q3
W8578
2014, April. Released 2014, April
Status
W725
Discontinued
W8578
Discontinued
Dimensions
W725
108.8 x 56.3 x 15 mm (4.28 x 2.22 x 0.59 in)
W8578
116 x 60 x 21 mm (4.57 x 2.36 x 0.83 in)
Weight
W725
-
W8578
217 g (7.65 oz)
SIM
W725
Dual SIM (Mini-SIM, dual stand-by)
W8578
Dual SIM
Type
W725
TFT resistive touchscreen, 256K colors
W8578
TFT, 256K colors
Size
W725
3.2 inches, 29.1 cm2 (~47.6% screen-to-body ratio)
W8578
3.5 inches, 34.9 cm2 (~50.1% screen-to-body ratio)
Resolution
W725
240 x 400 pixels, 5:3 ratio (~146 ppi density)
W8578
480 x 800 pixels, 5:3 ratio (~267 ppi density)
Other
W725
-
W8578
Secondary TFT, 256K colors 240 x 320 pixels, 2.6 inches
Card slot
W725
microSDHC (dedicated slot)
W8578
microSDHC (dedicated slot)
Phonebook
W725
Yes, Photocall
W8578
-
Call records
W725
Yes
W8578
-
Internal
W725
100MB
W8578
512MB 256MB RAM
Single
W725
5 MP, AF
W8578
5 MP
Features
W725
LED flash
W8578
LED flash
Video
W725
320p@30fps
W8578
Yes
Single
W725
Yes
W8578
-
Video
W725
W8578
-
Other
W725
-
W8578
No
Loudspeaker
W725
Yes
W8578
Yes
3.5mm jack
W725
No
W8578
Yes
WLAN
W725
No
W8578
Wi-Fi 802.11 b/g
Bluetooth
W725
2.1, A2DP, EDR
W8578
2.1, EDR
Positioning
W725
GPS, A-GPS
W8578
No
Radio
W725
FM radio
W8578
FM radio
USB
W725
miniUSB 2.0
W8578
microUSB 2.0
NFC
W725
-
W8578
No
Sensors
W725
Accelerometer
W8578
Accelerometer
Messaging
W725
SMS(threaded view), MMS, Email
W8578
-
Games
W725
Yes
W8578
-
Java
W725
Yes, MIDP 2.0
W8578
-
Other
W725
MP3/WAV/AAC+ player MP4/H.263 player Organizer Voice memo Predictive text input
W8578
SNS integration MP3/WAV/WMA/eAAC+ player MP4/H.263 player Document viewer Photo viewer Organizer Voice memo Predictive text input
Type
W725
Removable Li-Ion 2100 mAh battery
W8578
Li-Ion 2000 mAh, removable
Stand-by
W725
Up to 950 h (2G) / Up to 600 h (3G)
W8578
Up to 850 h
Talk time
W725
Up to 26 h (2G) / Up to 14 h (3G)
W8578
Up to 9 h
Colors
W725
Black
W8578
Black
OS
W725
-
W8578
Android 4.2 (Jelly Bean)