Screen size
equal specsStellar 507 (Mi-507)5.0"
Stellar 520 (Mi-520)5.0"
Quick verdict
Stellar 520 (Mi-520) leads the measured specs 7-1.
Measured wins
Stellar 507 (Mi-507)
1
spec wins
Ties
9
equal specs
Stellar 520 (Mi-520)
7
spec wins
Overall winner
Screen size
equal specsTechnology
Stellar 507 (Mi-507)
GSM / HSPA
Stellar 520 (Mi-520)
GSM / HSPA
2G bands
Stellar 507 (Mi-507)
GSM 900 / 1800 - SIM 1 & SIM 2
Stellar 520 (Mi-520)
GSM 850 / 900 / 1800 / 1900
3G bands
Stellar 507 (Mi-507)
HSDPA 2100
Stellar 520 (Mi-520)
HSDPA 2100
Speed
Stellar 507 (Mi-507)
HSPA 21.1/5.76 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
Storage
equal specsMain 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
Stellar 520 (Mi-520)
HSPA 21.1/5.76 Mbps
Announced
Stellar 507 (Mi-507)
2014, August. Released 2014, August
Stellar 520 (Mi-520)
2014, July. Released 2014, July
Status
Stellar 507 (Mi-507)
Discontinued
Stellar 520 (Mi-520)
Discontinued
Dimensions
Stellar 507 (Mi-507)
145.2 x 72.7 x 10.7 mm (5.72 x 2.86 x 0.42 in)
Stellar 520 (Mi-520)
145 x 72.8 x 8.5 mm (5.71 x 2.87 x 0.33 in)
Weight
Stellar 507 (Mi-507)
184 g (6.49 oz)
Stellar 520 (Mi-520)
156 g (5.50 oz)
SIM
Stellar 507 (Mi-507)
Dual SIM (Mini-SIM/ Micro-SIM)
Stellar 520 (Mi-520)
Mini-SIM
Type
Stellar 507 (Mi-507)
TFT, 256K colors
Stellar 520 (Mi-520)
IPS LCD
Size
Stellar 507 (Mi-507)
5.0 inches, 68.9 cm2 (~65.3% screen-to-body ratio)
Stellar 520 (Mi-520)
5.0 inches, 68.9 cm2 (~65.3% screen-to-body ratio)
Resolution
Stellar 507 (Mi-507)
480 x 854 pixels, 16:9 ratio (~196 ppi density)
Stellar 520 (Mi-520)
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
OS
Stellar 507 (Mi-507)
Android 4.4.2 (KitKat)
Stellar 520 (Mi-520)
Android 4.4.2 (KitKat)
Chipset
Stellar 507 (Mi-507)
Mediatek MT6572 (28 nm)
Stellar 520 (Mi-520)
Mediatek MT6582 (28 nm)
CPU
Stellar 507 (Mi-507)
Dual-core 1.3 GHz Cortex-A7
Stellar 520 (Mi-520)
Quad-core 1.3 GHz Cortex-A7
GPU
Stellar 507 (Mi-507)
Mali-400
Stellar 520 (Mi-520)
Mali-400MP2
Card slot
Stellar 507 (Mi-507)
microSDHC
Stellar 520 (Mi-520)
microSDHC (dedicated slot)
Internal
Stellar 507 (Mi-507)
4GB 512MB RAM
Stellar 520 (Mi-520)
4GB 1GB RAM
Single
Stellar 507 (Mi-507)
8 MP, AF
Stellar 520 (Mi-520)
8 MP, AF
Features
Stellar 507 (Mi-507)
LED flash, panorama
Stellar 520 (Mi-520)
LED flash, panorama, HDR
Video
Stellar 507 (Mi-507)
720p@30fps
Stellar 520 (Mi-520)
Yes
Single
Stellar 507 (Mi-507)
1.3 MP
Stellar 520 (Mi-520)
2 MP
Video
Stellar 507 (Mi-507)
Stellar 520 (Mi-520)
Loudspeaker
Stellar 507 (Mi-507)
Yes
Stellar 520 (Mi-520)
Yes
3.5mm jack
Stellar 507 (Mi-507)
Yes
Stellar 520 (Mi-520)
Yes
WLAN
Stellar 507 (Mi-507)
Wi-Fi 802.11 b/g/n, hotspot
Stellar 520 (Mi-520)
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
Stellar 507 (Mi-507)
4.0, A2DP, EDR
Stellar 520 (Mi-520)
3.0, A2DP, EDR
Positioning
Stellar 507 (Mi-507)
GPS
Stellar 520 (Mi-520)
GPS
NFC
Stellar 507 (Mi-507)
No
Stellar 520 (Mi-520)
No
Radio
Stellar 507 (Mi-507)
FM radio
Stellar 520 (Mi-520)
FM radio
USB
Stellar 507 (Mi-507)
microUSB 2.0
Stellar 520 (Mi-520)
microUSB 2.0
Sensors
Stellar 507 (Mi-507)
Accelerometer, proximity
Stellar 520 (Mi-520)
Accelerometer, proximity
Type
Stellar 507 (Mi-507)
Li-Ion 1800 mAh battery
Stellar 520 (Mi-520)
Li-Ion 2000 mAh battery
Stand-by
Stellar 507 (Mi-507)
Up to 200 h
Stellar 520 (Mi-520)
Up to 200 h
Talk time
Stellar 507 (Mi-507)
Up to 8 h
Stellar 520 (Mi-520)
Up to 4 h
Music play
Stellar 507 (Mi-507)
Up to 28 h
Stellar 520 (Mi-520)
Up to 20 h
Colors
Stellar 507 (Mi-507)
Red/Black, Blue/Black
Stellar 520 (Mi-520)
Red/Yellow
SAR EU
Stellar 507 (Mi-507)
0.94 W/kg (head)
Stellar 520 (Mi-520)
0.82 W/kg (head)