Asus Zenfone 4 Pro ZS551KL vs Unnecto Primo 2G

HSDPA 800, 850, 900, 1700(AWS), 1800, 1900, 2100

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LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 19(800), 20(800), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) - Global, Taiwan; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 41(2500) - US, Canada, Brazil; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500) - India

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42.2 Mbps

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5.76 Mbps

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LTE-A, (3CA) Cat12, 600 Mbps download, 150 Mbps upload

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2017-8

2016-3

2017-10

2016-4

Hybrid Dual SIM (Nano-SIM, dual stand-by)

Mini-SIM

156.9 mm

110.5 mm

75.6 mm

43 mm

7.6 mm

13.7 mm

175 g

73 g

Moonlight white, Pure Black

Black/Grey

AMOLED capacitive touchscreen

TFT

5.5 inches

1.8 inches

1080 x 1920 pixels

128 x 160 pixels

401 ppi

114 ppi

16777216

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Corning Gorilla Glass 5

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Yes, max 10 fingers

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Octa-core

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Quad-core 2.45 GHz Kryo

quad-core 1.9 GHz Kryo

Qualcomm MSM8998 Snapdragon 835

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Adreno 540

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6 GB

32 MB

64, 128 GB

32 MB

microSD(uses second SIM slot)

microSD

256 GB

32 GB

Android 7.1.1 (Nougat)

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Dual

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12 MP, f/1.7 , 25 mm, 2x optical zoom

1 MP

16 MP, 50 mm

2160p@30fps, 1080p@30/60fps, 1080p@120fps, 720p@240fps

720p@30fps

laser/phase detection autofocus

autofocus

LED flash

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4-axis optical image stabilization

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25mm (1/2.55" sensor size, 1.4 µm pixel size), 50mm (1/3.1" sensor size, 1.0 µm pixel size), geo-tagging, touch focus, face detection, HDR, panorama

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No

8 MP, f/1.9 , 22 mm, 1.4 µm

1080p

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Yes, dual speakers

Yes

FM radio

Stereo FM radio

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac

Yes

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Yes

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Yes

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Type-C reversible connector

microUSB 2.0

v5.0

Yes

Yes

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Yes

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Yes

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Yes

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Yes

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Yes

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Yes, with A-GPS

No

Yes

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Yes

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Yes

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Email

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IM

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Push Email

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Fingerprint (front-mounted), accelerometer, color spectrum, compass, gyro, proximity

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HTML5

-

-

Yes

3600 mAh

800 mAh

Non-removable

Removable

50% in 32 min

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-

8 h

27 h 30 min

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160 h