Screen size
T9393.2"
W8578Winner: 3.5"+8.6%
Quick verdict
T939 and W8578 are close on the measured specs.
Measured wins
T939
3
spec wins
Ties
9
equal specs
W8578
3
spec wins
Screen size
Technology
T939
GSM
W8578
GSM / HSPA
2G bands
T939
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
W8578
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
T939
TD-SCDMA
W8578
HSDPA 900 / 2100
Speed
T939
HSPA 3.6/0.384 Mbps
W8578
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
HSPA 3.6/0.384 Mbps
GPRS
T939
Yes
W8578
-
EDGE
T939
Yes
W8578
-
Announced
T939
2013, September. Released 2013, September
W8578
2014, April. Released 2014, April
Status
T939
Discontinued
W8578
Discontinued
Dimensions
T939
110 x 57.8 x 22 mm (4.33 x 2.28 x 0.87 in)
W8578
116 x 60 x 21 mm (4.57 x 2.36 x 0.83 in)
Weight
T939
239.5 g (8.43 oz)
W8578
217 g (7.65 oz)
SIM
T939
Dual SIM
W8578
Dual SIM
Type
T939
Dual TFT, 256K colors
W8578
TFT, 256K colors
Size
T939
3.2 inches, 29.1 cm2 (~45.8% screen-to-body ratio)
W8578
3.5 inches, 34.9 cm2 (~50.1% screen-to-body ratio)
Resolution
T939
480 x 800 pixels, 5:3 ratio (~292 ppi density)
W8578
480 x 800 pixels, 5:3 ratio (~267 ppi density)
Other
T939
-
W8578
Secondary TFT, 256K colors 240 x 320 pixels, 2.6 inches
OS
T939
Android 4.0 (Ice Cream Sandwich)
W8578
Android 4.2 (Jelly Bean)
CPU
T939
1.0 GHz
W8578
-
Card slot
T939
microSDHC (dedicated slot)
W8578
microSDHC (dedicated slot)
Internal
T939
4GB 512MB RAM
W8578
512MB 256MB RAM
Single
T939
5 MP, AF
W8578
5 MP
Features
T939
LED flash
W8578
LED flash
Video
T939
480p@30fps
W8578
Yes
Other
T939
No
W8578
No
Loudspeaker
T939
Yes
W8578
Yes
3.5mm jack
T939
Yes
W8578
Yes
WLAN
T939
Wi-Fi 802.11 b/g/n, hotspot
W8578
Wi-Fi 802.11 b/g
Bluetooth
T939
2.1, A2DP, EDR
W8578
2.1, EDR
Positioning
T939
GPS
W8578
No
NFC
T939
No
W8578
No
Radio
T939
No
W8578
FM radio
USB
T939
2.0
W8578
microUSB 2.0
Sensors
T939
Accelerometer, proximity
W8578
Accelerometer
Other
T939
-
W8578
SNS integration MP3/WAV/WMA/eAAC+ player MP4/H.263 player Document viewer Photo viewer Organizer Voice memo Predictive text input
Type
T939
Li-Ion 2000 mAh, removable
W8578
Li-Ion 2000 mAh, removable
Stand-by
T939
-
W8578
Up to 850 h
Talk time
T939
-
W8578
Up to 9 h
Colors
T939
Black
W8578
Black