Screen size
equal specs55 Graphite5.5"
55b Cobalt5.5"
Quick verdict
55 Graphite leads the measured specs 5-2.
Measured wins
55 Graphite
5
spec wins
Overall winner
Ties
10
equal specs
55b Cobalt
2
spec wins
Screen size
equal specsTechnology
55 Graphite
GSM / HSPA / LTE
55b Cobalt
GSM / HSPA / LTE
2G bands
55 Graphite
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
55b Cobalt
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
55 Graphite
HSDPA 900 / 2100
55b Cobalt
HSDPA 900 / 2100
4G bands
55 Graphite
LTE 800 / 1800 / 2100 / 2600
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU speed
RAM
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
55b Cobalt
LTE 800 / 1800 / 2100 / 2600
Speed
55 Graphite
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
55b Cobalt
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
Announced
55 Graphite
2017, February. Released 2017, June
55b Cobalt
2017, January. Released 2017, January
Status
55 Graphite
Discontinued
55b Cobalt
Discontinued
Dimensions
55 Graphite
157.8 x 77.2 x 7.8 mm (6.21 x 3.04 x 0.31 in)
55b Cobalt
155 x 79 x 0 mm (6.10 x 3.11 x 0.0 in)
Weight
55 Graphite
-
55b Cobalt
188 g (6.63 oz)
SIM
55 Graphite
Dual SIM
55b Cobalt
Dual SIM (Mini-SIM, dual stand-by)
Type
55 Graphite
IPS LCD
55b Cobalt
IPS LCD
Size
55 Graphite
5.5 inches, 83.4 cm2 (~68.5% screen-to-body ratio)
55b Cobalt
5.5 inches, 83.4 cm2 (~68.1% screen-to-body ratio)
Resolution
55 Graphite
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
55b Cobalt
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
OS
55 Graphite
Android 7.0 (Nougat)
55b Cobalt
Android 6.0 (Marshmallow)
Chipset
55 Graphite
Mediatek MT6737 (28 nm)
55b Cobalt
Qualcomm MSM8909 Snapdragon 210 (28 nm)
CPU
55 Graphite
Quad-core 1.5 GHz Cortex-A53
55b Cobalt
Quad-core 1.1 GHz
GPU
55 Graphite
Mali-T720MP2
55b Cobalt
Adreno 304
Card slot
55 Graphite
microSDXC
55b Cobalt
microSDXC
Internal
55 Graphite
16GB 2GB RAM
55b Cobalt
16GB 1GB RAM, 32GB 2GB RAM
Other
55 Graphite
eMMC 5.0
55b Cobalt
eMMC 4.5
Dual
55 Graphite
13 MP, AF Auxiliary lens
55b Cobalt
-
Features
55 Graphite
LED flash, HDR, panorama
55b Cobalt
LED flash, HDR, panorama
Video
55 Graphite
1080p@30fps
55b Cobalt
720p@30fps
Single
55 Graphite
-
55b Cobalt
13 MP, AF
Single
55 Graphite
5 MP
55b Cobalt
2 MP
Video
55 Graphite
55b Cobalt
Loudspeaker
55 Graphite
Yes
55b Cobalt
Yes
3.5mm jack
55 Graphite
Yes
55b Cobalt
Yes
WLAN
55 Graphite
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
55b Cobalt
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
55 Graphite
4.1, A2DP, LE
55b Cobalt
4.0, A2DP
Positioning
55 Graphite
GPS
55b Cobalt
GPS
NFC
55 Graphite
No
55b Cobalt
No
Radio
55 Graphite
FM radio
55b Cobalt
FM radio
USB
55 Graphite
microUSB 2.0, OTG
55b Cobalt
microUSB 2.0
Sensors
55 Graphite
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
55b Cobalt
Fingerprint (rear-mounted), accelerometer, proximity
Type
55 Graphite
Li-Ion 3000 mAh, non-removable
55b Cobalt
Li-Ion 2600 mAh, removable
Colors
55 Graphite
Black
55b Cobalt
Gray
Price
55 Graphite
About 180 EUR
55b Cobalt
-
SAR EU
55 Graphite
-
55b Cobalt
0.98 W/kg (head) 1.76 W/kg (body)