Screen size
equal specss5015 Spark II5.0"
s5028 Bolt5.0"
Quick verdict
s5015 Spark II leads the measured specs 8-0.
Measured wins
s5015 Spark II
8
spec wins
Overall winner
Ties
9
equal specs
s5028 Bolt
0
spec wins
Screen size
equal specsTechnology
s5015 Spark II
GSM / HSPA
s5028 Bolt
GSM / HSPA
2G bands
s5015 Spark II
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
s5028 Bolt
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
s5015 Spark II
HSDPA 850 / 1700 / 1900 / 2100
s5028 Bolt
HSDPA 850 / 1900
Speed
s5015 Spark II
HSPA 21.1/5.76 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
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
s5028 Bolt
HSPA 21.1/5.76 Mbps
Announced
s5015 Spark II
2015, January. Released 2015, February
s5028 Bolt
2017, April. Released 2017, April
Status
s5015 Spark II
Discontinued
s5028 Bolt
Discontinued
Dimensions
s5015 Spark II
143.5 x 71.5 x 8 mm (5.65 x 2.81 x 0.31 in)
s5028 Bolt
144.8 x 72.8 x 10 mm (5.70 x 2.87 x 0.39 in)
Weight
s5015 Spark II
135 g (4.76 oz)
s5028 Bolt
154 g (5.43 oz)
SIM
s5015 Spark II
Dual SIM (Mini-SIM/ Micro-SIM, dual stand-by)
s5028 Bolt
Dual SIM (Micro-SIM/ Mini-SIM, dual stand-by)
Type
s5015 Spark II
TFT
s5028 Bolt
TFT
Size
s5015 Spark II
5.0 inches, 68.9 cm2 (~67.2% screen-to-body ratio)
s5028 Bolt
5.0 inches, 68.9 cm2 (~65.4% screen-to-body ratio)
Resolution
s5015 Spark II
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
s5028 Bolt
480 x 854 pixels, 16:9 ratio (~196 ppi density)
OS
s5015 Spark II
Android 4.4.2 (KitKat)
s5028 Bolt
Android 6.0 (Marshmallow)
Chipset
s5015 Spark II
Mediatek MT6582M (28 nm)
s5028 Bolt
Spreadtrum SC7731C
CPU
s5015 Spark II
Quad-core 1.3 GHz Cortex-A7
s5028 Bolt
Quad-core 1.2 GHz Cortex-A7
GPU
s5015 Spark II
Mali-400MP2
s5028 Bolt
Mali-400
Card slot
s5015 Spark II
microSDHC
s5028 Bolt
microSDHC
Internal
s5015 Spark II
8GB 1GB RAM
s5028 Bolt
8GB 1GB RAM
Single
s5015 Spark II
8 MP
s5028 Bolt
8 MP, f/2.4, AF
Features
s5015 Spark II
Dual-LED flash
s5028 Bolt
LED flash, panorama
Video
s5015 Spark II
720p@30fps
s5028 Bolt
720p@30fps
Single
s5015 Spark II
5 MP
s5028 Bolt
2 MP, f/2.8
Features
s5015 Spark II
LED flash
s5028 Bolt
-
Video
s5015 Spark II
s5028 Bolt
Loudspeaker
s5015 Spark II
Yes
s5028 Bolt
Yes
3.5mm jack
s5015 Spark II
Yes
s5028 Bolt
Yes
WLAN
s5015 Spark II
Wi-Fi 802.11 b/g/n, hotspot
s5028 Bolt
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
s5015 Spark II
4.0, LE
s5028 Bolt
2.1, A2DP
Positioning
s5015 Spark II
GPS
s5028 Bolt
GPS
NFC
s5015 Spark II
No
s5028 Bolt
No
Radio
s5015 Spark II
FM radio
s5028 Bolt
Stereo FM radio
USB
s5015 Spark II
microUSB 2.0
s5028 Bolt
microUSB 2.0
Sensors
s5015 Spark II
Accelerometer, proximity
s5028 Bolt
Accelerometer
Type
s5015 Spark II
Li-Ion 2100 mAh battery
s5028 Bolt
Li-Ion 2000 mAh battery
Stand-by
s5015 Spark II
Up to 312 h (3G)
s5028 Bolt
Up to 240 h (3G)
Talk time
s5015 Spark II
Up to 10 h (3G)
s5028 Bolt
Up to 8 h (3G)
Colors
s5015 Spark II
Black, Blue
s5028 Bolt
Black, Gold
SAR EU
s5015 Spark II
0.67 W/kg (head) 1.42 W/kg (body)
s5028 Bolt
-
Price
s5015 Spark II
About 180 EUR
s5028 Bolt
-