Screen size
equal specsP1005.0"
P515.0"
Quick verdict
P100 and P51 are close on the measured specs.
Measured wins
P100
3
spec wins
Ties
11
equal specs
P51
3
spec wins
Screen size
equal specsTechnology
P100
GSM / HSPA / LTE
P51
GSM / HSPA
2G bands
P100
GSM 850 / 900 / 1800 / 1900
P51
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
P100
HSDPA 900 / 2100
P51
HSDPA 900 / 2100
4G bands
P100
1, 3, 5, 8, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
equal specsCPU speed
RAM
equal specsStorage
Main camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
P51
-
Speed
P100
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
P51
HSPA 42.2/5.76 Mbps
Announced
P100
2018, February. Released 2018, February
P51
2013, May. Released 2013, October
Status
P100
Discontinued
P51
Discontinued
Dimensions
P100
145 x 73 x 9.9 mm (5.71 x 2.87 x 0.39 in)
P51
144 x 75 x 8.5 mm (5.67 x 2.95 x 0.33 in)
Weight
P100
174.8 g (6.17 oz)
P51
135 g (4.76 oz)
SIM
P100
Dual SIM
P51
Dual SIM (Micro-SIM)
Type
P100
IPS LCD
P51
IPS LCD
Size
P100
5.0 inches, 68.9 cm2 (~65.1% screen-to-body ratio)
P51
5.0 inches, 68.9 cm2 (~63.8% screen-to-body ratio)
Resolution
P100
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
P51
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
Protection
P100
Corning Gorilla Glass (unspecified version)
P51
-
OS
P100
Android 7.0 (Nougat)
P51
Android 4.2 (Jelly Bean)
Chipset
P100
Mediatek MT6737 (28 nm)
P51
Mediatek MT6589 (28 nm)
CPU
P100
Quad-core 1.25 GHz Cortex-A53
P51
Quad-core 1.2 GHz Cortex-A7
GPU
P100
Mali-T720
P51
PowerVR SGX544
Card slot
P100
microSDXC
P51
microSDHC (dedicated slot)
Internal
P100
16GB 1GB RAM, 16GB 2GB RAM
P51
4GB 1GB RAM
Other
P100
eMMC 5.0
P51
-
Single
P100
8 MP
P51
8 MP, AF
Features
P100
LED flash
P51
LED flash
Video
P100
720p@30fps
P51
1080p@30fps
Single
P100
5 MP
P51
1.3 MP
Features
P100
LED flash
P51
-
Video
P100
P51
720p
Loudspeaker
P100
Yes
P51
Yes
3.5mm jack
P100
Yes
P51
Yes
WLAN
P100
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
P51
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
P100
4.0, A2DP
P51
4.0, A2DP, EDR
Positioning
P100
GPS
P51
GPS
NFC
P100
No
P51
No
Radio
P100
FM radio
P51
No
USB
P100
microUSB 2.0, OTG
P51
microUSB 2.0
Sensors
P100
Fingerprint (rear-mounted), accelerometer, proximity
P51
Accelerometer, proximity, compass
Type
P100
Li-Ion 2200 mAh, non-removable
P51
Li-Ion 2500 mAh, non-removable
Colors
P100
Gold
P51
Black, White
Models
P100
P100
P51
-
Price
P100
About 5300 INR
P51
About 440 EUR