Screen size
Smart 44.5"
Smart ultra 6Winner: 5.5"+18%
Quick verdict
Smart ultra 6 leads the measured specs 10-2.
Measured wins
Smart 4
2
spec wins
Ties
5
equal specs
Smart ultra 6
10
spec wins
Overall winner
Screen size
Technology
Smart 4
GSM / HSPA
Smart ultra 6
GSM / HSPA / LTE
2G bands
Smart 4
GSM 900 / 1800 / 1900
Smart ultra 6
GSM 850 / 900 / 1800 / 1900
3G bands
Smart 4
HSDPA 900 / 2100
Smart ultra 6
HSDPA
Speed
Smart 4
HSPA
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
HSPA, LTE
4G bands
Smart 4
-
Smart ultra 6
3, 7, 20
GPRS
Smart 4
-
Smart ultra 6
Yes
EDGE
Smart 4
-
Smart ultra 6
Yes
Announced
Smart 4
2014, May. Released 2014, May
Smart ultra 6
2015, June. Released 2015, June
Status
Smart 4
Discontinued
Smart ultra 6
Discontinued
Dimensions
Smart 4
134.7 x 66 x 10.6 mm (5.30 x 2.60 x 0.42 in)
Smart ultra 6
154 x 77 x 8.4 mm (6.06 x 3.03 x 0.33 in)
Weight
Smart 4
152 g (5.36 oz)
Smart ultra 6
159 g (5.61 oz)
SIM
Smart 4
Micro-SIM
Smart ultra 6
Nano-SIM
Type
Smart 4
TFT
Smart ultra 6
IPS LCD
Size
Smart 4
4.5 inches, 55.8 cm2 (~62.8% screen-to-body ratio)
Smart ultra 6
5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio)
Resolution
Smart 4
480 x 854 pixels, 16:9 ratio (~218 ppi density)
Smart ultra 6
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
OS
Smart 4
Android 4.4.2 (KitKat)
Smart ultra 6
Android 5.0.1 (Lollipop), upgradable to 6.0.1 (Marshmallow)
Chipset
Smart 4
Qualcomm MSM8210 Snapdragon 200 (28 nm)
Smart ultra 6
Qualcomm MSM8939 Snapdragon 615 (28 nm)
CPU
Smart 4
Dual-core 1.2 GHz Cortex-A7
Smart ultra 6
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.1 GHz Cortex-A53)
GPU
Smart 4
Adreno 302
Smart ultra 6
Adreno 405
Card slot
Smart 4
microSDHC (dedicated slot)
Smart ultra 6
microSDXC (dedicated slot)
Internal
Smart 4
4GB 512MB RAM
Smart ultra 6
16GB 2GB RAM
Other
Smart 4
eMMC 4.5
Smart ultra 6
eMMC 4.5
Single
Smart 4
5 MP
Smart ultra 6
13 MP, AF
Features
Smart 4
LED flash
Smart ultra 6
LED flash
Video
Smart 4
Yes
Smart ultra 6
1080p@30fps
Single
Smart 4
Yes
Smart ultra 6
5 MP
Video
Smart 4
Smart ultra 6
Loudspeaker
Smart 4
Yes
Smart ultra 6
Yes
3.5mm jack
Smart 4
Yes
Smart ultra 6
Yes
WLAN
Smart 4
Wi-Fi 802.11 b/g/n, hotspot
Smart ultra 6
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
Smart 4
4.0, A2DP
Smart ultra 6
4.0, A2DP
Positioning
Smart 4
GPS
Smart ultra 6
GPS
NFC
Smart 4
Yes (optional)
Smart ultra 6
No
Radio
Smart 4
FM radio
Smart ultra 6
FM radio
USB
Smart 4
microUSB 2.0
Smart ultra 6
microUSB 2.0
Sensors
Smart 4
Accelerometer, proximity
Smart ultra 6
Accelerometer, proximity
Type
Smart 4
Li-Ion 1880 mAh, removable
Smart ultra 6
Li-Ion 3000 mAh, non-removable
Colors
Smart 4
Black, White
Smart ultra 6
Gray, Silver
SAR
Smart 4
1.22 W/kg (head) 0.82 W/kg (body)
Smart ultra 6
-
Price
Smart 4
About 90 EUR
Smart ultra 6
About 170 EUR
Models
Smart 4
-
Smart ultra 6
Smart ultra 6