Asus Zenfone 4 Pro ZS551KL vs Realme X7 Pro

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800

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

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

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 34, 38, 39, 40, 41

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5G band 1, 41, 77, 78, 79; SA/NSA

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LTE-A (CA)

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

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2.3 Gbps download

2017-8

2020-09

2017-10

2020-09

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Aluminium alloy, glass

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

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

156.9 mm

160.8 mm

75.6 mm

75.1 mm

7.6 mm

8.5 mm

175 g

184 g

Moonlight white, Pure Black

Blue, Rainbow, White

AMOLED capacitive touchscreen

Super AMOLED capacitive touchscreen

5.5 inches

6.55 inches

1080 x 1920 pixels

1080 x 2400 pixels

401 ppi

402 ppi

Corning Gorilla Glass 5

Scratch resistant, Corning Gorilla Glass 5

Yes, max 10 fingers

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Quad-core 2.45 GHz Kryo

Quad-core 2.6 GHz Cortex-A77

quad-core 1.9 GHz Kryo

quad-core 2.0 GHz Cortex-A55

Qualcomm MSM8998 Snapdragon 835

Mediatek Dimensity 1000+

Adreno 540

Mali-G77 MC9

6 GB

6, 8 GB

64, 128 GB

128, 256 GB

microSD(uses second SIM slot)

No

256 GB

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-

UFS 2.1

Android 7.1.1 (Nougat)

Realme UI (Android 10)

Dual

Quad

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

64 MP, f/1.8 , 26 mm, 1/1.72" , 0.8 µm

16 MP, 50 mm

8 MP, f/2.3 , 1/4.0" , 1.12 µm

2 MP, f/2.4

2 MP, f/2.4

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9280 x 6920 pixels

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

4K@30/60fps, 1080p@30/60/120fps, gyro-EIS

laser/phase detection autofocus

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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

Autofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocus

8 MP, f/1.9 , 22 mm, 1.4 µm

32 MP, f/2.5 , 26 mm, 0.8 µm, 1/2.8"

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5184 x 3456 pixels

1080p

1080p@30/120fps, gyro-EIS

Yes

No

Yes, dual speakers

Yes, with stereo speakers

Vibration; MP3, WAV ringtones

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-

Yes

-

No

FM radio

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

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax

Yes

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Yes

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Yes, with A-GPS

Yes, with dual-band A-GPS

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Yes

SMS(threaded view)

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MMS

-

Email

-

IM

-

Push Email

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No

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

Accelerometer, compass, fingerprint, gyroscope, proximity

Li-Ion

Li-Po

3600 mAh

4500 mAh

50% in 32 min

SuperDart Charge (100% in 35 min)

27 h 30 min

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320 USD