Screen size
ROG Phone II ZS660KLWinner: 6.6"+10%
Zenfone 85.9"
Quick verdict
Zenfone 8 leads the measured specs 10-6.
Measured wins
ROG Phone II ZS660KL
6
spec wins
Ties
7
equal specs
Zenfone 8
10
spec wins
Overall winner
Screen size
Technology
ROG Phone II ZS660KL
GSM / HSPA / LTE
Zenfone 8
GSM / HSPA / LTE / 5G
2G bands
ROG Phone II ZS660KL
GSM 850 / 900 / 1800 / 1900
Zenfone 8
GSM 850 / 900 / 1800 / 1900
3G bands
ROG Phone II ZS660KL
HSDPA 850 / 900 / 1900 / 2100
Zenfone 8
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
ROG Phone II ZS660KL
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 28, 29, 32, 34, 38, 39, 40, 41, 46
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front camera
Battery
Wired charging
equal specsWeight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
NFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
equal specsZenfone 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
ROG Phone II ZS660KL
HSPA 42.2/5.76 Mbps, LTE (5CA) Cat18 (Cat20 Ultimate edition) 1200/150 Mbps
Zenfone 8
HSPA 42.2/5.76 Mbps, LTE (5CA) Cat20 2000/150 Mbps, 5G
5G bands
ROG Phone II ZS660KL
-
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
ROG Phone II ZS660KL
2019, July 22. Released 2019, September
Zenfone 8
2021, May 12
Status
ROG Phone II ZS660KL
Discontinued
Zenfone 8
Available. Released 2021, May 13
Dimensions
ROG Phone II ZS660KL
171 x 77.6 x 9.5 mm (6.73 x 3.06 x 0.37 in)
Zenfone 8
148 x 68.5 x 8.9 mm (5.83 x 2.70 x 0.35 in)
Weight
ROG Phone II ZS660KL
240 g (8.47 oz)
Zenfone 8
169 g (5.96 oz)
Build
ROG Phone II ZS660KL
Glass front (Gorilla Glass 6), glass back (Gorilla Glass 3), aluminum frame
Zenfone 8
Glass front (Gorilla Glass Victus), glass back (Gorilla Glass 3), aluminum frame
SIM
ROG Phone II ZS660KL
Nano-SIM + Nano-SIM
Zenfone 8
Nano-SIM + Nano-SIM
Other
ROG Phone II ZS660KL
RGB light panel (on the back)
Zenfone 8
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Type
ROG Phone II ZS660KL
AMOLED, 1B colors, 120Hz, HDR10
Zenfone 8
Super AMOLED, 120Hz, HDR10+, 700 nits (HBM), 1100 nits (peak)
Size
ROG Phone II ZS660KL
6.59 inches, 106.6 cm2 (~80.3% screen-to-body ratio)
Zenfone 8
5.9 inches, 84.0 cm2 (~82.9% screen-to-body ratio)
Resolution
ROG Phone II ZS660KL
1080 x 2340 pixels, 19.5:9 ratio (~391 ppi density)
Zenfone 8
1080 x 2400 pixels, 20:9 ratio (~446 ppi density)
Protection
ROG Phone II ZS660KL
Corning Gorilla Glass 6
Zenfone 8
Corning Gorilla Glass Victus
OS
ROG Phone II ZS660KL
Android 9.0 (Pie), ROG UI
Zenfone 8
Android 11, upgradable to Android 13
Chipset
ROG Phone II ZS660KL
Qualcomm SM8150 Snapdragon 855+ (7 nm)
Zenfone 8
Qualcomm SM8350 Snapdragon 888 5G (5 nm)
CPU
ROG Phone II ZS660KL
Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
Zenfone 8
Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPU
ROG Phone II ZS660KL
Adreno 640 (700 MHz)
Zenfone 8
Adreno 660
Card slot
ROG Phone II ZS660KL
No
Zenfone 8
No
Internal
ROG Phone II ZS660KL
128GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM
Zenfone 8
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 256GB 16GB RAM
Other
ROG Phone II ZS660KL
UFS 3.0
Zenfone 8
UFS 3.1
Dual
ROG Phone II ZS660KL
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 13 MP, f/2.4, 11mm (ultrawide)
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
Features
ROG Phone II ZS660KL
Laser AF, LED flash, HDR, panorama
Zenfone 8
LED flash, HDR, panorama
Video
ROG Phone II ZS660KL
4K@30/60fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS (except @240/480fps)
Zenfone 8
8K@24fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR
Single
ROG Phone II ZS660KL
24MP, f/2.2, 0.9µm
Zenfone 8
12 MP, f/2.5, 28mm (standard), 1/2.93", 1.22µm, dual pixel PDAF
Features
ROG Phone II ZS660KL
Panorama, HDR
Zenfone 8
-
Video
ROG Phone II ZS660KL
1080p@30fps
Zenfone 8
4K@30fps, 1080p@30/60fps
Loudspeaker
ROG Phone II ZS660KL
Yes, with DTS:X stereo speakers (2 dedicated amplifiers)
Zenfone 8
Yes, with stereo speakers
3.5mm jack
ROG Phone II ZS660KL
Yes
Zenfone 8
Yes
Other
ROG Phone II ZS660KL
24-bit/192kHz Hi-Res audio
Zenfone 8
32-bit/384kHz Hi-Res audio
WLAN
ROG Phone II ZS660KL
Wi-Fi 802.11 a/b/g/n/ac/ad, dual-band, Wi-Fi Direct
Zenfone 8
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Bluetooth
ROG Phone II ZS660KL
5.0, A2DP, LE, aptX HD
Zenfone 8
5.2, A2DP, LE, aptX HD, aptX Adaptive
Positioning
ROG Phone II ZS660KL
GPS (L1+L5), GLONASS, BDS, GALILEO, QZSS
Zenfone 8
GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
NFC
ROG Phone II ZS660KL
Yes
Zenfone 8
Yes
Radio
ROG Phone II ZS660KL
FM radio
Zenfone 8
FM radio (market/region dependent)
USB
ROG Phone II ZS660KL
USB Type-C 3.1, accessory connector, OTG
Zenfone 8
USB Type-C 2.0, OTG
Sensors
ROG Phone II ZS660KL
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Zenfone 8
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
ROG Phone II ZS660KL
Li-Po 6000 mAh, non-removable
Zenfone 8
Li-Po 4000 mAh
Charging
ROG Phone II ZS660KL
30W wired 10W reverse wired, QC4
Zenfone 8
30W wired, PD3.0, 60% in 25 min, 100% in 80 min Reverse wired
Colors
ROG Phone II ZS660KL
Matte Black, Glossy Black
Zenfone 8
Obsidian Black, Horizon Silver
Models
ROG Phone II ZS660KL
ASUS_I001D, I001DA, I001DE, I001DC, I001DB, I001D, I001DD
Zenfone 8
ZS590KS, ZS590KS-2A007EU, I006D
Price
ROG Phone II ZS660KL
About 1070 EUR
Zenfone 8
About 290 EUR