Screen size
Smart 4 power5.0"
Smart ultra 6Winner: 5.5"+9.1%
Quick verdict
Smart ultra 6 leads the measured specs 10-1.
Measured wins
Smart 4 power
1
spec wins
Ties
6
equal specs
Smart ultra 6
10
spec wins
Overall winner
Screen size
Technology
Smart 4 power
GSM / HSPA / LTE
Smart ultra 6
GSM / HSPA / LTE
2G bands
Smart 4 power
GSM 850 / 900 / 1800 / 1900
Smart ultra 6
GSM 850 / 900 / 1800 / 1900
3G bands
Smart 4 power
HSDPA 900 / 2100
Smart ultra 6
HSDPA
4G bands
Smart 4 power
1, 3, 7, 8, 20
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
equal specsWired 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 4 power
HSPA, LTE Cat4 150/50 Mbps
Smart ultra 6
HSPA, LTE
GPRS
Smart 4 power
-
Smart ultra 6
Yes
EDGE
Smart 4 power
-
Smart ultra 6
Yes
Announced
Smart 4 power
2014, June. Released 2014, June
Smart ultra 6
2015, June. Released 2015, June
Status
Smart 4 power
Discontinued
Smart ultra 6
Discontinued
Dimensions
Smart 4 power
141 x 71.4 x 9.5 mm (5.55 x 2.81 x 0.37 in)
Smart ultra 6
154 x 77 x 8.4 mm (6.06 x 3.03 x 0.33 in)
Weight
Smart 4 power
162 g (5.71 oz)
Smart ultra 6
159 g (5.61 oz)
SIM
Smart 4 power
Micro-SIM
Smart ultra 6
Nano-SIM
Type
Smart 4 power
IPS LCD
Smart ultra 6
IPS LCD
Size
Smart 4 power
5.0 inches, 68.9 cm2 (~68.5% screen-to-body ratio)
Smart ultra 6
5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio)
Resolution
Smart 4 power
540 x 960 pixels, 16:9 ratio (~220 ppi density)
Smart ultra 6
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
OS
Smart 4 power
Android 4.4.2 (KitKat)
Smart ultra 6
Android 5.0.1 (Lollipop), upgradable to 6.0.1 (Marshmallow)
Chipset
Smart 4 power
Mediatek MT6582M (28 nm)
Smart ultra 6
Qualcomm MSM8939 Snapdragon 615 (28 nm)
CPU
Smart 4 power
Quad-core 1.3 GHz Cortex-A7
Smart ultra 6
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.1 GHz Cortex-A53)
GPU
Smart 4 power
Mali-400MP2
Smart ultra 6
Adreno 405
Card slot
Smart 4 power
microSDHC (dedicated slot)
Smart ultra 6
microSDXC (dedicated slot)
Internal
Smart 4 power
4GB 1GB RAM
Smart ultra 6
16GB 2GB RAM
Other
Smart 4 power
-
Smart ultra 6
eMMC 4.5
Single
Smart 4 power
5 MP
Smart ultra 6
13 MP, AF
Features
Smart 4 power
LED flash
Smart ultra 6
LED flash
Video
Smart 4 power
Yes
Smart ultra 6
1080p@30fps
Single
Smart 4 power
VGA
Smart ultra 6
5 MP
Video
Smart 4 power
Smart ultra 6
Loudspeaker
Smart 4 power
Yes
Smart ultra 6
Yes
3.5mm jack
Smart 4 power
Yes
Smart ultra 6
Yes
WLAN
Smart 4 power
Wi-Fi 802.11 b/g/n, hotspot
Smart ultra 6
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
Smart 4 power
4.0, A2DP
Smart ultra 6
4.0, A2DP
Positioning
Smart 4 power
GPS
Smart ultra 6
GPS
NFC
Smart 4 power
Yes
Smart ultra 6
No
Radio
Smart 4 power
FM radio, RDS
Smart ultra 6
FM radio
USB
Smart 4 power
microUSB 2.0
Smart ultra 6
microUSB 2.0
Sensors
Smart 4 power
Accelerometer, proximity
Smart ultra 6
Accelerometer, proximity
Type
Smart 4 power
Li-Ion 3000 mAh, non-removable
Smart ultra 6
Li-Ion 3000 mAh, non-removable
Colors
Smart 4 power
Black, White
Smart ultra 6
Gray, Silver
Models
Smart 4 power
985N
Smart ultra 6
Smart ultra 6
SAR EU
Smart 4 power
0.31 W/kg (head) 0.64 W/kg (body)
Smart ultra 6
-
Price
Smart 4 power
About 150 EUR
Smart ultra 6
About 170 EUR