Screen size
W3373.2"
W8578Winner: 3.5"+8.6%
Quick verdict
W8578 leads the measured specs 5-3.
Measured wins
W337
3
spec wins
Ties
5
equal specs
W8578
5
spec wins
Overall winner
Screen size
Technology
W337
GSM / HSPA
W8578
GSM / HSPA
2G bands
W337
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
W8578
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
W337
HSDPA 850 / 1900
W8578
HSDPA 900 / 2100
Speed
W337
HSPA 7.2/5.76 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
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
W8578
HSPA 3.6/0.384 Mbps
Announced
W337
2012, November. Released 2012, November
W8578
2014, April. Released 2014, April
Status
W337
Discontinued
W8578
Discontinued
Dimensions
W337
107.3 x 54.6 x 12.8 mm (4.22 x 2.15 x 0.50 in)
W8578
116 x 60 x 21 mm (4.57 x 2.36 x 0.83 in)
Weight
W337
108.3 g (3.81 oz)
W8578
217 g (7.65 oz)
SIM
W337
Dual SIM (Mini-SIM)
W8578
Dual SIM
Type
W337
TFT
W8578
TFT, 256K colors
Size
W337
3.2 inches, 29.1 cm2 (~49.7% screen-to-body ratio)
W8578
3.5 inches, 34.9 cm2 (~50.1% screen-to-body ratio)
Resolution
W337
240 x 400 pixels, 5:3 ratio (~146 ppi density)
W8578
480 x 800 pixels, 5:3 ratio (~267 ppi density)
Other
W337
-
W8578
Secondary TFT, 256K colors 240 x 320 pixels, 2.6 inches
OS
W337
Android 2.3 (Gingerbread)
W8578
Android 4.2 (Jelly Bean)
Card slot
W337
microSDHC (dedicated slot)
W8578
microSDHC (dedicated slot)
Internal
W337
512MB
W8578
512MB 256MB RAM
Single
W337
2 MP
W8578
5 MP
Video
W337
480p@30fps
W8578
Yes
Features
W337
-
W8578
LED flash
Single
W337
Yes
W8578
-
Video
W337
W8578
-
Other
W337
-
W8578
No
Loudspeaker
W337
Yes
W8578
Yes
3.5mm jack
W337
Yes
W8578
Yes
WLAN
W337
Wi-Fi 802.11 b/g
W8578
Wi-Fi 802.11 b/g
Bluetooth
W337
3.0, A2DP, EDR
W8578
2.1, EDR
Positioning
W337
GPS
W8578
No
NFC
W337
No
W8578
No
Radio
W337
No
W8578
FM radio
USB
W337
microUSB 2.0
W8578
microUSB 2.0
Sensors
W337
Accelerometer, proximity
W8578
Accelerometer
Other
W337
-
W8578
SNS integration MP3/WAV/WMA/eAAC+ player MP4/H.263 player Document viewer Photo viewer Organizer Voice memo Predictive text input
Type
W337
Li-Ion 1350 mAh, removable
W8578
Li-Ion 2000 mAh, removable
Stand-by
W337
Up to 385 h
W8578
Up to 850 h
Talk time
W337
Up to 6 h
W8578
Up to 9 h
Colors
W337
Black
W8578
Black