Screen size
D633Winner: 4.0"+13%
W85783.5"
Quick verdict
D633 and W8578 are close on the measured specs.
Measured wins
D633
4
spec wins
Ties
6
equal specs
W8578
4
spec wins
Screen size
Technology
D633
CDMA / EVDO
W8578
GSM / HSPA
2G bands
D633
CDMA 800 , CDMA2000 1xEV-DO
W8578
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
D633
EV-DO Rev.A 3.1 Mbps
W8578
HSPA 3.6/0.384 Mbps
GPRS
D633
No
W8578
Resolution
equal specsRefresh 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
-
EDGE
D633
No
W8578
-
3G bands
D633
-
W8578
HSDPA 900 / 2100
Announced
D633
2012, June. Released 2012, June
W8578
2014, April. Released 2014, April
Status
D633
Discontinued
W8578
Discontinued
Dimensions
D633
125.4 x 63.9 x 11.5 mm (4.94 x 2.52 x 0.45 in)
W8578
116 x 60 x 21 mm (4.57 x 2.36 x 0.83 in)
Weight
D633
154 g (5.43 oz)
W8578
217 g (7.65 oz)
SIM
D633
Mini-SIM
W8578
Dual SIM
Type
D633
TFT
W8578
TFT, 256K colors
Size
D633
4.0 inches, 45.5 cm2 (~56.8% screen-to-body ratio)
W8578
3.5 inches, 34.9 cm2 (~50.1% screen-to-body ratio)
Resolution
D633
480 x 800 pixels, 5:3 ratio (~233 ppi density)
W8578
480 x 800 pixels, 5:3 ratio (~267 ppi density)
Other
D633
-
W8578
Secondary TFT, 256K colors 240 x 320 pixels, 2.6 inches
OS
D633
Android 2.3 (Gingerbread)
W8578
Android 4.2 (Jelly Bean)
CPU
D633
1.0 GHz
W8578
-
Card slot
D633
microSDHC (dedicated slot)
W8578
microSDHC (dedicated slot)
Internal
D633
60MB
W8578
512MB 256MB RAM
Single
D633
5 MP, AF
W8578
5 MP
Video
D633
480p
W8578
Yes
Features
D633
-
W8578
LED flash
Other
D633
No
W8578
No
Loudspeaker
D633
Yes
W8578
Yes
3.5mm jack
D633
Yes
W8578
Yes
WLAN
D633
Wi-Fi 802.11 b/g, hotspot
W8578
Wi-Fi 802.11 b/g
Bluetooth
D633
2.0, A2DP
W8578
2.1, EDR
Positioning
D633
GPS, A-GPS
W8578
No
Radio
D633
No
W8578
FM radio
USB
D633
microUSB 2.0
W8578
microUSB 2.0
NFC
D633
-
W8578
No
Sensors
D633
Accelerometer, proximity
W8578
Accelerometer
Other
D633
MP3/WAV/AAC+ player MP4/H.264/WMV player Document viewer Photo viewer Organizer Voice memo/dial 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
D633
Removable Li-Ion 1630 mAh battery
W8578
Li-Ion 2000 mAh, removable
Stand-by
D633
Up to 200 h
W8578
Up to 850 h
Talk time
D633
Up to 5 h
W8578
Up to 9 h
Colors
D633
White
W8578
Black