Screen size
Zenfone 3s Max ZC521TL5.2"
Zenfone 8 FlipWinner: 6.7"+22%
Quick verdict
Zenfone 8 Flip leads the measured specs 15-4.
Measured wins
Zenfone 3s Max ZC521TL
4
spec wins
Ties
3
equal specs
Zenfone 8 Flip
15
spec wins
Overall winner
Screen size
Technology
Zenfone 3s Max ZC521TL
GSM / HSPA / LTE
Zenfone 8 Flip
GSM / HSPA / LTE / 5G
2G bands
Zenfone 3s Max ZC521TL
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Zenfone 8 Flip
GSM 850 / 900 / 1800 / 1900
3G bands
Zenfone 3s Max ZC521TL
HSDPA 850 / 900 / 1900 / 2100 - Global, HSDPA 850 / 900 / 2100 - India
Zenfone 8 Flip
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Zenfone 3s Max ZC521TL
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
NFC
3.5mm jack
SD card
equal specsStereo speakers
1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 38, 41 - Taiwan, 1, 3, 5, 8, 40 - India
Zenfone 8 Flip
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42
Speed
Zenfone 3s Max ZC521TL
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Zenfone 8 Flip
HSPA 42.2/5.76 Mbps, LTE (6CA) Cat20 2000/150 Mbps, 5G
5G bands
Zenfone 3s Max ZC521TL
-
Zenfone 8 Flip
1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 77, 78, 77, 78 SA/NSA
Announced
Zenfone 3s Max ZC521TL
2017, January. Released 2017, February
Zenfone 8 Flip
2021, May 12
Status
Zenfone 3s Max ZC521TL
Discontinued
Zenfone 8 Flip
Available. Released 2021, May 13
Dimensions
Zenfone 3s Max ZC521TL
149.5 x 73.7 x 8.9 mm (5.89 x 2.90 x 0.35 in)
Zenfone 8 Flip
165 x 77.3 x 9.6 mm (6.50 x 3.04 x 0.38 in)
Weight
Zenfone 3s Max ZC521TL
175 g (5.22 oz)
Zenfone 8 Flip
230 g (8.11 oz)
SIM
Zenfone 3s Max ZC521TL
Nano-SIM + Micro-SIM
Zenfone 8 Flip
Nano-SIM + Nano-SIM
Build
Zenfone 3s Max ZC521TL
-
Zenfone 8 Flip
Glass front (Gorilla Glass 6), glass back (Gorilla Glass 3), aluminum frame
Type
Zenfone 3s Max ZC521TL
IPS LCD
Zenfone 8 Flip
Super AMOLED, 90Hz, HDR10+, 700 nits (HBM), 1000 nits (peak)
Size
Zenfone 3s Max ZC521TL
5.2 inches, 74.5 cm2 (~67.7% screen-to-body ratio)
Zenfone 8 Flip
6.67 inches, 107.4 cm2 (~84.2% screen-to-body ratio)
Resolution
Zenfone 3s Max ZC521TL
720 x 1280 pixels, 16:9 ratio (~282 ppi density)
Zenfone 8 Flip
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Protection
Zenfone 3s Max ZC521TL
-
Zenfone 8 Flip
Corning Gorilla Glass 6
OS
Zenfone 3s Max ZC521TL
Android 7 (Nougat), ZenUI 3
Zenfone 8 Flip
Android 11, upgradable to Android 13
Chipset
Zenfone 3s Max ZC521TL
Mediatek MT6750 (28 nm)
Zenfone 8 Flip
Qualcomm SM8350 Snapdragon 888 5G (5 nm)
CPU
Zenfone 3s Max ZC521TL
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Zenfone 8 Flip
Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPU
Zenfone 3s Max ZC521TL
Mali-T860MP2
Zenfone 8 Flip
Adreno 660
Card slot
Zenfone 3s Max ZC521TL
microSDXC (uses shared SIM slot)
Zenfone 8 Flip
microSDXC (dedicated slot)
Internal
Zenfone 3s Max ZC521TL
32GB 3GB RAM
Zenfone 8 Flip
128GB 8GB RAM, 256GB 8GB RAM
Other
Zenfone 3s Max ZC521TL
eMMC 5.1
Zenfone 8 Flip
UFS 3.1
Single
Zenfone 3s Max ZC521TL
13 MP, f/2.0, AF
Zenfone 8 Flip
-
Features
Zenfone 3s Max ZC521TL
Dual-LED dual-tone flash, panorama, HDR
Zenfone 8 Flip
Dual-LED flash, HDR, auto panorama (motorized rotation)
Video
Zenfone 3s Max ZC521TL
1080p@30fps
Zenfone 8 Flip
8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR
Triple
Zenfone 3s Max ZC521TL
-
Zenfone 8 Flip
64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 8 MP, f/2.4, 80mm (telephoto), PDAF, 3x optical zoom 12 MP, f/2.2, 112˚, 14mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF
Single
Zenfone 3s Max ZC521TL
8 MP
Zenfone 8 Flip
-
Video
Zenfone 3s Max ZC521TL
1080p@30fps
Zenfone 8 Flip
8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR
Triple
Zenfone 3s Max ZC521TL
-
Zenfone 8 Flip
Motorized flip-up main camera module
Features
Zenfone 3s Max ZC521TL
-
Zenfone 8 Flip
Dual-LED flash, HDR, auto panorama (motorized rotation)
Loudspeaker
Zenfone 3s Max ZC521TL
Yes
Zenfone 8 Flip
Yes, with stereo speakers
3.5mm jack
Zenfone 3s Max ZC521TL
Yes
Zenfone 8 Flip
No
Other
Zenfone 3s Max ZC521TL
-
Zenfone 8 Flip
24-bit/192kHz Hi-Res audio
WLAN
Zenfone 3s Max ZC521TL
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Zenfone 8 Flip
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Bluetooth
Zenfone 3s Max ZC521TL
4.0, A2DP, EDR
Zenfone 8 Flip
5.2, A2DP, LE, aptX HD, aptX Adaptive
Positioning
Zenfone 3s Max ZC521TL
GPS, GLONASS, BDS
Zenfone 8 Flip
GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
NFC
Zenfone 3s Max ZC521TL
No
Zenfone 8 Flip
Yes
Radio
Zenfone 3s Max ZC521TL
FM radio
Zenfone 8 Flip
No
USB
Zenfone 3s Max ZC521TL
microUSB 2.0, OTG
Zenfone 8 Flip
USB Type-C 2.0
Sensors
Zenfone 3s Max ZC521TL
Fingerprint (front-mounted), accelerometer, gyro, proximity, compass
Zenfone 8 Flip
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
Zenfone 3s Max ZC521TL
Li-Po 5000 mAh, non-removable
Zenfone 8 Flip
Li-Po 5000 mAh
Charging
Zenfone 3s Max ZC521TL
Reverse wired
Zenfone 8 Flip
30W wired, PD3.0
Stand-by
Zenfone 3s Max ZC521TL
Up to 816 h (3G)
Zenfone 8 Flip
-
Talk time
Zenfone 3s Max ZC521TL
Up to 28 h (3G)
Zenfone 8 Flip
-
Colors
Zenfone 3s Max ZC521TL
Gold, Black
Zenfone 8 Flip
Galactic Black, Glacier Silver
Models
Zenfone 3s Max ZC521TL
X00GD
Zenfone 8 Flip
ZS672KS, I004D
Price
Zenfone 3s Max ZC521TL
About 180 EUR
Zenfone 8 Flip
About 380 EUR