Screen size
ROG Phone II ZS660KL6.6"
Zenfone 8 FlipWinner: 6.7"+1.2%
Quick verdict
Zenfone 8 Flip leads the measured specs 10-7.
Measured wins
ROG Phone II ZS660KL
7
spec wins
Ties
5
equal specs
Zenfone 8 Flip
10
spec wins
Overall winner
Screen size
Technology
ROG Phone II ZS660KL
GSM / HSPA / LTE
Zenfone 8 Flip
GSM / HSPA / LTE / 5G
2G bands
ROG Phone II ZS660KL
GSM 850 / 900 / 1800 / 1900
Zenfone 8 Flip
GSM 850 / 900 / 1800 / 1900
3G bands
ROG Phone II ZS660KL
HSDPA 850 / 900 / 1900 / 2100
Zenfone 8 Flip
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
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
Front camera
Battery
Wired charging
equal specsWeight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
NFC
equal specs3.5mm jack
SD card
Stereo speakers
equal specsZenfone 8 Flip
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42
Speed
ROG Phone II ZS660KL
HSPA 42.2/5.76 Mbps, LTE (5CA) Cat18 (Cat20 Ultimate edition) 1200/150 Mbps
Zenfone 8 Flip
HSPA 42.2/5.76 Mbps, LTE (6CA) Cat20 2000/150 Mbps, 5G
5G bands
ROG Phone II ZS660KL
-
Zenfone 8 Flip
1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 77, 78, 77, 78 SA/NSA
Announced
ROG Phone II ZS660KL
2019, July 22. Released 2019, September
Zenfone 8 Flip
2021, May 12
Status
ROG Phone II ZS660KL
Discontinued
Zenfone 8 Flip
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 Flip
165 x 77.3 x 9.6 mm (6.50 x 3.04 x 0.38 in)
Weight
ROG Phone II ZS660KL
240 g (8.47 oz)
Zenfone 8 Flip
230 g (8.11 oz)
Build
ROG Phone II ZS660KL
Glass front (Gorilla Glass 6), glass back (Gorilla Glass 3), aluminum frame
Zenfone 8 Flip
Glass front (Gorilla Glass 6), glass back (Gorilla Glass 3), aluminum frame
SIM
ROG Phone II ZS660KL
Nano-SIM + Nano-SIM
Zenfone 8 Flip
Nano-SIM + Nano-SIM
Other
ROG Phone II ZS660KL
RGB light panel (on the back)
Zenfone 8 Flip
-
Type
ROG Phone II ZS660KL
AMOLED, 1B colors, 120Hz, HDR10
Zenfone 8 Flip
Super AMOLED, 90Hz, HDR10+, 700 nits (HBM), 1000 nits (peak)
Size
ROG Phone II ZS660KL
6.59 inches, 106.6 cm2 (~80.3% screen-to-body ratio)
Zenfone 8 Flip
6.67 inches, 107.4 cm2 (~84.2% screen-to-body ratio)
Resolution
ROG Phone II ZS660KL
1080 x 2340 pixels, 19.5:9 ratio (~391 ppi density)
Zenfone 8 Flip
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Protection
ROG Phone II ZS660KL
Corning Gorilla Glass 6
Zenfone 8 Flip
Corning Gorilla Glass 6
OS
ROG Phone II ZS660KL
Android 9.0 (Pie), ROG UI
Zenfone 8 Flip
Android 11, upgradable to Android 13
Chipset
ROG Phone II ZS660KL
Qualcomm SM8150 Snapdragon 855+ (7 nm)
Zenfone 8 Flip
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 Flip
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 Flip
Adreno 660
Card slot
ROG Phone II ZS660KL
No
Zenfone 8 Flip
microSDXC (dedicated slot)
Internal
ROG Phone II ZS660KL
128GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM
Zenfone 8 Flip
128GB 8GB RAM, 256GB 8GB RAM
Other
ROG Phone II ZS660KL
UFS 3.0
Zenfone 8 Flip
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 Flip
-
Features
ROG Phone II ZS660KL
Laser AF, LED flash, HDR, panorama
Zenfone 8 Flip
Dual-LED flash, HDR, auto panorama (motorized rotation)
Video
ROG Phone II ZS660KL
4K@30/60fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS (except @240/480fps)
Zenfone 8 Flip
8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR
Triple
ROG Phone II ZS660KL
-
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
ROG Phone II ZS660KL
24MP, f/2.2, 0.9µm
Zenfone 8 Flip
-
Features
ROG Phone II ZS660KL
Panorama, HDR
Zenfone 8 Flip
Dual-LED flash, HDR, auto panorama (motorized rotation)
Video
ROG Phone II ZS660KL
1080p@30fps
Zenfone 8 Flip
8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR
Triple
ROG Phone II ZS660KL
-
Zenfone 8 Flip
Motorized flip-up main camera module
Loudspeaker
ROG Phone II ZS660KL
Yes, with DTS:X stereo speakers (2 dedicated amplifiers)
Zenfone 8 Flip
Yes, with stereo speakers
3.5mm jack
ROG Phone II ZS660KL
Yes
Zenfone 8 Flip
No
Other
ROG Phone II ZS660KL
24-bit/192kHz Hi-Res audio
Zenfone 8 Flip
24-bit/192kHz 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 Flip
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 Flip
5.2, A2DP, LE, aptX HD, aptX Adaptive
Positioning
ROG Phone II ZS660KL
GPS (L1+L5), GLONASS, BDS, GALILEO, QZSS
Zenfone 8 Flip
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 Flip
Yes
Radio
ROG Phone II ZS660KL
FM radio
Zenfone 8 Flip
No
USB
ROG Phone II ZS660KL
USB Type-C 3.1, accessory connector, OTG
Zenfone 8 Flip
USB Type-C 2.0
Sensors
ROG Phone II ZS660KL
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Zenfone 8 Flip
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
ROG Phone II ZS660KL
Li-Po 6000 mAh, non-removable
Zenfone 8 Flip
Li-Po 5000 mAh
Charging
ROG Phone II ZS660KL
30W wired 10W reverse wired, QC4
Zenfone 8 Flip
30W wired, PD3.0
Colors
ROG Phone II ZS660KL
Matte Black, Glossy Black
Zenfone 8 Flip
Galactic Black, Glacier Silver
Models
ROG Phone II ZS660KL
ASUS_I001D, I001DA, I001DE, I001DC, I001DB, I001D, I001DD
Zenfone 8 Flip
ZS672KS, I004D
Price
ROG Phone II ZS660KL
About 1070 EUR
Zenfone 8 Flip
About 380 EUR