Asus Zenfone 4 Pro ZS551KL vs Xiaomi Mi CC9

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA

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

HSDPA 850, 900, 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(2100), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)

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3.1 Mbps download, 1.8 Mbps upload

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LTE Cat 12, 603 Mbps download, 102 Mbps upload

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

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2017-8

2019-7

2017-10

2019-7

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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

156.8 mm

75.6 mm

74.5 mm

7.6 mm

8.67 mm

175 g

179 g

Moonlight white, Pure Black

Black, Blue, White

AMOLED capacitive touchscreen

Super AMOLED capacitive touchscreen

5.5 inches

6.39 inches

1080 x 1920 pixels

1080 x 2340 pixels

401 ppi

403 ppi

Corning Gorilla Glass 5

Scratch resistant, Corning Gorilla Glass 5

Yes, max 10 fingers

Yes

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HDR10, DC dimming

Quad-core 2.45 GHz Kryo

Dual-core 2.2 GHz Kryo 360

quad-core 1.9 GHz Kryo

Hexa-core 1.7 GHz Kryo 360

Qualcomm MSM8998 Snapdragon 835

Qualcomm SDM710 Snapdragon 710

Adreno 540

Adreno 616

microSD(uses second SIM slot)

microSD, microSDHC, microSDXC

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UFS 2.1

Android 7.1.1 (Nougat)

MIUI 10.2 (Android 9.0 Pie)

Dual

Triple

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

48 MP, f/1.79 , 1/2" , 0.8 µm

16 MP, 50 mm

8 MP, f/2.2 , 1.12 µm

2 MP, f/2.4 , 1.75 µm

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8000 x 6000 pixels

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

2160p@30fps, 1080p@30/60/120fps, 720p@960fps

laser/phase detection autofocus

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LED flash

dual-LED flash

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, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection

8 MP, f/1.9 , 22 mm, 1.4 µm

32 MP, f/2.0 , 0.8 µm

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6528 x 4896 pixels

1080p

1080p@30fps

Yes, dual speakers

Yes

Vibration; MP3, WAV ringtones

-

-

Yes

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FM Radio

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

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Yes

Type-C reversible connector

Type-C 1.0 reversible connector

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Yes

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Yes

Yes

aptX HD

Yes, with A-GPS

Yes, with dual-band A-GPS

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Yes

Yes

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SMS(threaded view)

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MMS

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Email

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IM

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Push Email

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No

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

Accelerometer, compass, fingerprint, gyroscope, light, proximity, in-display fingerprint sensor

Li-Ion

Li-Po

3600 mAh

4030 mAh

50% in 32 min

Qualcomm Quick Charge 4.0

27 h 30 min

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290 USD