Screen size
Zenfone 3s Max ZC521TL5.2"
Zenfone 8Winner: 5.9"+12%
Quick verdict
Zenfone 8 leads the measured specs 18-2.
Measured wins
Zenfone 3s Max ZC521TL
2
spec wins
Ties
3
equal specs
Zenfone 8
18
spec wins
Overall winner
Screen size
Technology
Zenfone 3s Max ZC521TL
GSM / HSPA / LTE
Zenfone 8
GSM / HSPA / LTE / 5G
2G bands
Zenfone 3s Max ZC521TL
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Zenfone 8
GSM 850 / 900 / 1800 / 1900
3G bands
Zenfone 3s Max ZC521TL
HSDPA 850 / 900 / 1900 / 2100 - Global, HSDPA 850 / 900 / 2100 - India
Zenfone 8
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
Wired charging
Weight
Thickness
equal specsIP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
NFC
3.5mm jack
equal specsSD card
Stereo speakers
1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 38, 41 - Taiwan, 1, 3, 5, 8, 40 - India
Zenfone 8
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 - International, 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 30, 34, 38, 39, 40, 41, 42, 66, 71 - USA
Speed
Zenfone 3s Max ZC521TL
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Zenfone 8
HSPA 42.2/5.76 Mbps, LTE (5CA) Cat20 2000/150 Mbps, 5G
5G bands
Zenfone 3s Max ZC521TL
-
Zenfone 8
1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 77, 78 SA/NSA - International, 1, 2, 3, 5, 7, 8, 12, 20, 25, 38, 40, 66, 71, 77, 78 SA/NSA - USA
Announced
Zenfone 3s Max ZC521TL
2017, January. Released 2017, February
Zenfone 8
2021, May 12
Status
Zenfone 3s Max ZC521TL
Discontinued
Zenfone 8
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
148 x 68.5 x 8.9 mm (5.83 x 2.70 x 0.35 in)
Weight
Zenfone 3s Max ZC521TL
175 g (5.22 oz)
Zenfone 8
169 g (5.96 oz)
SIM
Zenfone 3s Max ZC521TL
Nano-SIM + Micro-SIM
Zenfone 8
Nano-SIM + Nano-SIM
Build
Zenfone 3s Max ZC521TL
-
Zenfone 8
Glass front (Gorilla Glass Victus), glass back (Gorilla Glass 3), aluminum frame
Other
Zenfone 3s Max ZC521TL
-
Zenfone 8
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Type
Zenfone 3s Max ZC521TL
IPS LCD
Zenfone 8
Super AMOLED, 120Hz, HDR10+, 700 nits (HBM), 1100 nits (peak)
Size
Zenfone 3s Max ZC521TL
5.2 inches, 74.5 cm2 (~67.7% screen-to-body ratio)
Zenfone 8
5.9 inches, 84.0 cm2 (~82.9% screen-to-body ratio)
Resolution
Zenfone 3s Max ZC521TL
720 x 1280 pixels, 16:9 ratio (~282 ppi density)
Zenfone 8
1080 x 2400 pixels, 20:9 ratio (~446 ppi density)
Protection
Zenfone 3s Max ZC521TL
-
Zenfone 8
Corning Gorilla Glass Victus
OS
Zenfone 3s Max ZC521TL
Android 7 (Nougat), ZenUI 3
Zenfone 8
Android 11, upgradable to Android 13
Chipset
Zenfone 3s Max ZC521TL
Mediatek MT6750 (28 nm)
Zenfone 8
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
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
Adreno 660
Card slot
Zenfone 3s Max ZC521TL
microSDXC (uses shared SIM slot)
Zenfone 8
No
Internal
Zenfone 3s Max ZC521TL
32GB 3GB RAM
Zenfone 8
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 256GB 16GB RAM
Other
Zenfone 3s Max ZC521TL
eMMC 5.1
Zenfone 8
UFS 3.1
Single
Zenfone 3s Max ZC521TL
13 MP, f/2.0, AF
Zenfone 8
-
Features
Zenfone 3s Max ZC521TL
Dual-LED dual-tone flash, panorama, HDR
Zenfone 8
LED flash, HDR, panorama
Video
Zenfone 3s Max ZC521TL
1080p@30fps
Zenfone 8
8K@24fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR
Dual
Zenfone 3s Max ZC521TL
-
Zenfone 8
64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF, OIS 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
12 MP, f/2.5, 28mm (standard), 1/2.93", 1.22µm, dual pixel PDAF
Video
Zenfone 3s Max ZC521TL
1080p@30fps
Zenfone 8
4K@30fps, 1080p@30/60fps
Loudspeaker
Zenfone 3s Max ZC521TL
Yes
Zenfone 8
Yes, with stereo speakers
3.5mm jack
Zenfone 3s Max ZC521TL
Yes
Zenfone 8
Yes
Other
Zenfone 3s Max ZC521TL
-
Zenfone 8
32-bit/384kHz Hi-Res audio
WLAN
Zenfone 3s Max ZC521TL
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Zenfone 8
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
5.2, A2DP, LE, aptX HD, aptX Adaptive
Positioning
Zenfone 3s Max ZC521TL
GPS, GLONASS, BDS
Zenfone 8
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
Yes
Radio
Zenfone 3s Max ZC521TL
FM radio
Zenfone 8
FM radio (market/region dependent)
USB
Zenfone 3s Max ZC521TL
microUSB 2.0, OTG
Zenfone 8
USB Type-C 2.0, OTG
Sensors
Zenfone 3s Max ZC521TL
Fingerprint (front-mounted), accelerometer, gyro, proximity, compass
Zenfone 8
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
Zenfone 3s Max ZC521TL
Li-Po 5000 mAh, non-removable
Zenfone 8
Li-Po 4000 mAh
Charging
Zenfone 3s Max ZC521TL
Reverse wired
Zenfone 8
30W wired, PD3.0, 60% in 25 min, 100% in 80 min Reverse wired
Stand-by
Zenfone 3s Max ZC521TL
Up to 816 h (3G)
Zenfone 8
-
Talk time
Zenfone 3s Max ZC521TL
Up to 28 h (3G)
Zenfone 8
-
Colors
Zenfone 3s Max ZC521TL
Gold, Black
Zenfone 8
Obsidian Black, Horizon Silver
Models
Zenfone 3s Max ZC521TL
X00GD
Zenfone 8
ZS590KS, ZS590KS-2A007EU, I006D
Price
Zenfone 3s Max ZC521TL
About 180 EUR
Zenfone 8
About 290 EUR