Screen size
Smart 4G4.5"
Smart ultra 6Winner: 5.5"+18%
Quick verdict
Smart ultra 6 leads the measured specs 10-2.
Measured wins
Smart 4G
2
spec wins
Ties
5
equal specs
Smart ultra 6
10
spec wins
Overall winner
Screen size
Technology
Smart 4G
GSM / HSPA / LTE
Smart ultra 6
GSM / HSPA / LTE
2G bands
Smart 4G
GSM 900 / 1800 / 1900
Smart ultra 6
GSM 850 / 900 / 1800 / 1900
3G bands
Smart 4G
HSDPA 900 / 2100
Smart ultra 6
HSDPA
4G bands
Smart 4G
3, 7, 20
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
Smart ultra 6
3, 7, 20
Speed
Smart 4G
HSPA, LTE
Smart ultra 6
HSPA, LTE
GPRS
Smart 4G
-
Smart ultra 6
Yes
EDGE
Smart 4G
-
Smart ultra 6
Yes
Announced
Smart 4G
2014, October. Released 2014, October
Smart ultra 6
2015, June. Released 2015, June
Status
Smart 4G
Discontinued
Smart ultra 6
Discontinued
Dimensions
Smart 4G
134 x 67.1 x 10.3 mm (5.28 x 2.64 x 0.41 in)
Smart ultra 6
154 x 77 x 8.4 mm (6.06 x 3.03 x 0.33 in)
Weight
Smart 4G
153 g (5.40 oz)
Smart ultra 6
159 g (5.61 oz)
SIM
Smart 4G
Micro-SIM
Smart ultra 6
Nano-SIM
Type
Smart 4G
IPS LCD
Smart ultra 6
IPS LCD
Size
Smart 4G
4.5 inches, 55.8 cm2 (~62.1% screen-to-body ratio)
Smart ultra 6
5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio)
Resolution
Smart 4G
540 x 960 pixels, 16:9 ratio (~245 ppi density)
Smart ultra 6
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
OS
Smart 4G
Android 4.2.2 (Jelly Bean)
Smart ultra 6
Android 5.0.1 (Lollipop), upgradable to 6.0.1 (Marshmallow)
Chipset
Smart 4G
Qualcomm MSM8930 Snapdragon 400 (28 nm)
Smart ultra 6
Qualcomm MSM8939 Snapdragon 615 (28 nm)
CPU
Smart 4G
Dual-core 1.2 GHz Krait
Smart ultra 6
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.1 GHz Cortex-A53)
GPU
Smart 4G
Adreno 305
Smart ultra 6
Adreno 405
Card slot
Smart 4G
microSDHC (dedicated slot)
Smart ultra 6
microSDXC (dedicated slot)
Internal
Smart 4G
8GB 1GB RAM
Smart ultra 6
16GB 2GB RAM
Other
Smart 4G
eMMC 4.5
Smart ultra 6
eMMC 4.5
Single
Smart 4G
8 MP, AF
Smart ultra 6
13 MP, AF
Features
Smart 4G
LED flash
Smart ultra 6
LED flash
Video
Smart 4G
Yes
Smart ultra 6
1080p@30fps
Single
Smart 4G
1 MP
Smart ultra 6
5 MP
Video
Smart 4G
Smart ultra 6
Loudspeaker
Smart 4G
Yes
Smart ultra 6
Yes
3.5mm jack
Smart 4G
Yes
Smart ultra 6
Yes
WLAN
Smart 4G
Wi-Fi 802.11 a/b/g/n, dual-band, hotspot
Smart ultra 6
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
Smart 4G
4.0, A2DP
Smart ultra 6
4.0, A2DP
Positioning
Smart 4G
GPS
Smart ultra 6
GPS
NFC
Smart 4G
Yes (optional)
Smart ultra 6
No
Radio
Smart 4G
No
Smart ultra 6
FM radio
USB
Smart 4G
microUSB 2.0
Smart ultra 6
microUSB 2.0
Sensors
Smart 4G
Accelerometer, proximity
Smart ultra 6
Accelerometer, proximity
Type
Smart 4G
Li-Ion 1880 mAh, removable
Smart ultra 6
Li-Ion 3000 mAh, non-removable
Colors
Smart 4G
Black
Smart ultra 6
Gray, Silver
Models
Smart 4G
-
Smart ultra 6
Smart ultra 6
Price
Smart 4G
-
Smart ultra 6
About 170 EUR