Asus Zenfone 4 Pro ZS551KL vs Asus Zenfone Max Plus (M2) ZB634KL

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(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 40(2300)

-

LTE, Cat7, 301 Mbps download, 102 Mbps upload

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

-

Yes

GPRS

2017-8

2019-3

2017-10

2019-3

-

Plastic, metal

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

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

156.9 mm

159.2 mm

75.6 mm

76.2 mm

7.6 mm

8.4 mm

175 g

165 g

Moonlight white, Pure Black

Black, Blue, Red, Silver

AMOLED capacitive touchscreen

S-IPS LCD capacitive touchscreen

5.5 inches

6.26 inches

1080 x 1920 pixels

1080 x 2246 pixels

401 ppi

398 ppi

Corning Gorilla Glass 5

2.5D curved glass screen

Yes, max 10 fingers

Yes

-

Bluelight filter

Octa-core

-

Quad-core 2.45 GHz Kryo

Octa-core 1.8 GHz Cortex-A53

quad-core 1.9 GHz Kryo

Qualcomm MSM8998 Snapdragon 835

Qualcomm Snapdragon SiP 1

Adreno 540

Adreno 506

6 GB

3 GB

64, 128 GB

32 GB

microSD(uses second SIM slot)

microSD, microSDHC, microSDXC

256 GB

512 GB

Android 7.1.1 (Nougat)

Android 8.1 Oreo

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

12 MP, f/1.8 , 27 mm, 1/2.9" , 1.25 µm

16 MP, 50 mm

5 MP, f/2.4 , 1.12 µm

-

4000 x 3000 pixels

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

1080p@30fps

laser/phase detection autofocus

-

4-axis optical image stabilization

-

-

phase detection autofocus

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

8 MP, f/1.9 , 22 mm, 1.4 µm

8 MP, f/2.0

-

3264 x 2448 pixels

1080p

1080p@30fps

Yes, dual speakers

Yes

Vibration; MP3, WAV ringtones

-

-

Yes

-

FM Radio

FM radio

-

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

Wi-Fi 802.11b, 802.11g, 802.11n

Yes

-

Type-C reversible connector

microUSB 2.0

-

Yes

v5.0

v4.2

Yes

-

Yes

-

Yes

-

Yes

-

-

Yes

Yes

-

SMS(threaded view)

-

MMS

-

Email

-

IM

-

Push Email

-

No

-

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

Accelerometer, fingerprint, gyroscope, proximity

Li-Ion

Li-Po

3600 mAh

4000 mAh

50% in 32 min

-

-

40 h

27 h 30 min

40 h