Screen size
B502Winner: 5.0"+10%
F34.5"
Quick verdict
B502 leads the measured specs 9-2.
Measured wins
B502
9
spec wins
Overall winner
Ties
6
equal specs
F3
2
spec wins
Screen size
Technology
B502
GSM / HSPA
F3
GSM / HSPA
2G bands
B502
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
F3
GSM 850 / 900 / 1800 / 1900
3G bands
B502
HSDPA 900 / 2100
F3
HSDPA 900 / 2100
Speed
B502
HSPA 21.1/5.76 Mbps
F3
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
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
HSPA 42.2/11.5 Mbps
Announced
B502
2014, October. Released 2014, October
F3
2013, November. Released 2013, November
Status
B502
Discontinued
F3
Discontinued
Dimensions
B502
144 x 69.7 x 7 mm (5.67 x 2.74 x 0.28 in)
F3
131.6 x 66.9 x 8.9 mm (5.18 x 2.63 x 0.35 in)
Weight
B502
125 g (4.41 oz)
F3
119 g (4.20 oz)
SIM
B502
Dual SIM (Mini-SIM/ Micro-SIM, dual stand-by)
F3
Micro-SIM
Type
B502
IPS LCD
F3
IPS LCD
Size
B502
5.0 inches, 68.9 cm2 (~68.7% screen-to-body ratio)
F3
4.5 inches, 55.8 cm2 (~63.4% screen-to-body ratio)
Resolution
B502
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
F3
540 x 960 pixels, 16:9 ratio (~245 ppi density)
OS
B502
Android 4.4.2 (KitKat)
F3
Android 4.2.2 (Jelly Bean)
Chipset
B502
Mediatek MT6582 (28 nm)
F3
Mediatek MT6589 (28 nm)
CPU
B502
Quad-core 1.3 GHz Cortex-A7
F3
Quad-core 1.2 GHz Cortex-A7
GPU
B502
Mali-400MP2
F3
PowerVR SGX544
Card slot
B502
microSDHC
F3
microSDHC (dedicated slot)
Internal
B502
16GB 2GB RAM
F3
4GB 1GB RAM
Single
B502
13 MP, AF
F3
13 MP, AF
Features
B502
LED flash
F3
LED flash, HDR, panorama
Video
B502
Yes
F3
Yes
Single
B502
5 MP
F3
2 MP
Video
B502
F3
Loudspeaker
B502
Yes
F3
Yes
3.5mm jack
B502
Yes
F3
Yes
WLAN
B502
Wi-Fi 802.11 b/g/n, hotspot
F3
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA, hotspot
Bluetooth
B502
3.0, A2DP
F3
Yes
Positioning
B502
GPS
F3
GPS
NFC
B502
No
F3
No
Radio
B502
FM radio
F3
FM radio
USB
B502
microUSB 2.0
F3
microUSB 2.0
Sensors
B502
Accelerometer, proximity
F3
Accelerometer, gyro, proximity, compass
Type
B502
Li-Ion 1800 mAh, non-removable
F3
Li-Ion 2100 mAh, removable
Stand-by
B502
Up to 430 h (3G)
F3
-
Talk time
B502
Up to 11 h (3G)
F3
-
Colors
B502
Black, White
F3
White, Red
Price
B502
-
F3
About 200 EUR