Screen size
equal specsMi-425 Stellar4.0"
Stellar 440 (Mi-440)4.0"
Quick verdict
Stellar 440 (Mi-440) leads the measured specs 7-2.
Measured wins
Mi-425 Stellar
2
spec wins
Ties
7
equal specs
Stellar 440 (Mi-440)
7
spec wins
Overall winner
Screen size
equal specsTechnology
Mi-425 Stellar
GSM / HSPA
Stellar 440 (Mi-440)
GSM / HSPA
2G bands
Mi-425 Stellar
GSM 900 / 1800
Stellar 440 (Mi-440)
GSM 900 / 1800
3G bands
Mi-425 Stellar
HSDPA 2100
Stellar 440 (Mi-440)
HSDPA 2100
Speed
Mi-425 Stellar
HSPA
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU speed
equal specsRAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
Stellar 440 (Mi-440)
HSPA 21.1/5.76 Mbps
Announced
Mi-425 Stellar
2012, June. Released 2012, June
Stellar 440 (Mi-440)
2014, December. Released 2014, December
Status
Mi-425 Stellar
Discontinued
Stellar 440 (Mi-440)
Discontinued
Dimensions
Mi-425 Stellar
125 x 63.5 x 12.5 mm (4.92 x 2.5 x 0.49 in)
Stellar 440 (Mi-440)
127.6 x 63.8 x 11.5 mm (5.02 x 2.51 x 0.45 in)
Weight
Mi-425 Stellar
110 g (3.88 oz)
Stellar 440 (Mi-440)
119 g (4.20 oz)
SIM
Mi-425 Stellar
Mini-SIM
Stellar 440 (Mi-440)
Mini-SIM
Type
Mi-425 Stellar
TFT, 256K colors
Stellar 440 (Mi-440)
TFT, 256K colors
Size
Mi-425 Stellar
4.0 inches, 45.5 cm2 (~57.4% screen-to-body ratio)
Stellar 440 (Mi-440)
4.0 inches, 45.5 cm2 (~55.9% screen-to-body ratio)
Resolution
Mi-425 Stellar
480 x 800 pixels, 5:3 ratio (~233 ppi density)
Stellar 440 (Mi-440)
480 x 800 pixels, 5:3 ratio (~233 ppi density)
OS
Mi-425 Stellar
Android 2.3 (Gingerbread), upgradable to 4.0 (Ice Cream Sandwich)
Stellar 440 (Mi-440)
Android 4.4.2 (KitKat)
CPU
Mi-425 Stellar
1.0 GHz
Stellar 440 (Mi-440)
Dual-core 1.0 GHz Cortex-A7
Chipset
Mi-425 Stellar
-
Stellar 440 (Mi-440)
Mediatek MT6572 (28 nm)
GPU
Mi-425 Stellar
-
Stellar 440 (Mi-440)
Mali-400
Card slot
Mi-425 Stellar
microSDHC (dedicated slot)
Stellar 440 (Mi-440)
microSDHC (dedicated slot)
Internal
Mi-425 Stellar
149MB
Stellar 440 (Mi-440)
4GB 512MB RAM
Single
Mi-425 Stellar
5 MP, AF
Stellar 440 (Mi-440)
3.15 MP
Features
Mi-425 Stellar
LED flash
Stellar 440 (Mi-440)
LED flash
Video
Mi-425 Stellar
Yes
Stellar 440 (Mi-440)
480p@25fps
Single
Mi-425 Stellar
VGA
Stellar 440 (Mi-440)
1.3 MP
Video
Mi-425 Stellar
Stellar 440 (Mi-440)
Loudspeaker
Mi-425 Stellar
Yes
Stellar 440 (Mi-440)
Yes, dual speakers
3.5mm jack
Mi-425 Stellar
Yes
Stellar 440 (Mi-440)
Yes
WLAN
Mi-425 Stellar
Wi-Fi 802.11 b/g, hotspot
Stellar 440 (Mi-440)
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
Mi-425 Stellar
Yes
Stellar 440 (Mi-440)
2.0, A2DP
Positioning
Mi-425 Stellar
GPS, A-GPS
Stellar 440 (Mi-440)
GPS
Radio
Mi-425 Stellar
FM radio
Stellar 440 (Mi-440)
FM radio
USB
Mi-425 Stellar
Proprietary
Stellar 440 (Mi-440)
microUSB 2.0
NFC
Mi-425 Stellar
-
Stellar 440 (Mi-440)
No
Sensors
Mi-425 Stellar
Accelerometer, proximity, compass
Stellar 440 (Mi-440)
Accelerometer
Other
Mi-425 Stellar
MP4/WMV/H.263 player MP3/WAV/AAC+ player Organizer Document viewer Photo/video editor Voice memo Predictive text input
Stellar 440 (Mi-440)
-
Type
Mi-425 Stellar
Removable Li-Ion 2000 mAh battery
Stellar 440 (Mi-440)
Li-Ion 1400 mAh battery
Stand-by
Mi-425 Stellar
-
Stellar 440 (Mi-440)
Up to 72 h
Talk time
Mi-425 Stellar
-
Stellar 440 (Mi-440)
Up to 8 h
Music play
Mi-425 Stellar
-
Stellar 440 (Mi-440)
Up to 15 h
Colors
Mi-425 Stellar
White/Black
Stellar 440 (Mi-440)
Gray
SAR EU
Mi-425 Stellar
0.36 W/kg (head)
Stellar 440 (Mi-440)
0.58 W/kg (head)
Price
Mi-425 Stellar
About 90 EUR
Stellar 440 (Mi-440)
-