Asus
Asus Zenfone Max Pro (M1) ZB601KL/ZB602K
Asus
Asus ROG Phone ZS600KL

Asus
Asus Zenfone Max Shot ZB634KL

Features
Fingerprint (rear-mounted), accelerometer, proximity, compass, gyroscope, ambient light sensor
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Fingerprint (rear-mounted), accelerometer, gyro, proximity
Memory
32GB 3GB RAM, 64GB 4GB RAM, 128GB 6GB RAM, eMMC 5.1, microSDXC (dedicated slot)
No, 128GB 8GB RAM, 512GB 8GB RAM, UFS 2.1
64GB 4GB RAM, microSD, up to 1 TB (dedicated slot)
Display
IPS LCD capacitive touchscreen, 16M colors, 5.99 inches, 92.1 cm2 (~76.2% screen-to-body ratio), 1080 x 2160 pixels, 18:9 ratio (~404 ppi density)
1080 x 2160 pixels, 18:9 ratio (~402 ppi density), AMOLED capacitive touchscreen, 16M colors, Corning Gorilla Glass 6, 6.0 inches, 92.9 cm2 (~76.8% screen-to-body ratio), DCI-P3 108.6%, HDR, 90 Hz, Always-on display
S-IPS LCD capacitive touchscreen, 16M colors, 6.26 inches, 98.7 cm2 (~81.4% screen-to-body ratio), 1080 x 2246 pixels, 18.7:9 ratio (~398 ppi density)
Battery
Non-removable Li-Po 5000 mAh battery, Up to 840 h (3G), Up to 42 h (3G), Up to 199 h, Battery charging 10W
Fast battery charging 30W (Quick Charge 4+), Non-removable Li-Ion 4000 mAh
Non-removable Li-Po 4000 mAh battery, Battery charging 10W
Selfie Camera
1080p@30fps, LED flash
1080p@30fps, 24mm (wide), HDR, Panorama, 8 MP, f/2.0, 24mm (wide)
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Main Camera
LED flash, HDR, panorama, 13 MP, f/2.2, 25mm (wide), 1.12µm, PDAF, 5 MP, f/2.4, 1.12µm, depth sensor, or, 16 MP, f/2.0, PDAF, 5 MP, f/2.4, 1.12µm, depth sensor (6 GB RAM model only), 4K@30fp, 1080p@30/60fps
LED flash, panorama, HDR, 4K@30/60fp, 1080p@30/60/240fp, (3-axis gyro-EIS), 12 MP, f/1.8, 24mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, 4-axis OIS
8 MP, 12mm (ultrawide), no AF
LED flash, HDR, panorama, 1080p@30fps, 12 MP, f/1.8, 1/2.9", 1.25μm, PDAF, 8 MP, 13mm (ultrawide), 5 MP, f/2.4, 1.12µm, depth sensor