Brand/Manufacture
Asus
Samsung
Model
Asus Zenfone 8 Flip
Samsung Galaxy S21 Ultra 5G
Code Name
ZS672KS, I004D
SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980
Announcement Date
2021, May 12
2021, January 14
Official Release
2021, May 13
2021, January 29
Official Availability
Available.
Available.
Release Country
Global
Global
Screen Size
6.67 inches, 107.4 cm2 (~84.2% screen-to-body ratio),
6.8 inches, 112.1 cm2(~89.8% screen-to-body ratio),
Resolution & Pixel Density
1080 x 2400 pixels, 20:9 ratio, ~395 ppi density
1440 x 3200 pixels, 20:9 ratio, ~515 ppi density
Brightness/Color Depth
1000 nits (peak)
1500 nits (peak)
Panel Type
Super AMOLED, 90Hz, HDR10+, 700 nits (HBM), 1000 nits (peak)
Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
Extra Feature
Corning Gorilla Glass 6, Always-on display
Corning Gorilla Glass Victus, Always-on display
Dimensions (Size)
165 x 77.3 x 9.6 mm (6.50 x 3.04 x 0.38 in)
165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)
Physical Weight
230 g (8.11 oz)
227 g (Sub6), 229 g (mmWave) (8.01 oz)
Body Materials
Glass front (Gorilla Glass 6), glass back (Gorilla Glass 3), aluminum frame
Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Color Variant
Galactic Black, Glacier Silver
Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
RAM & ROM Variant
128GB, 256GB
128GB, 256GB, 256GB, 512GB, 512GB
Processor Variant
Qualcomm SM8350 Snapdragon 888 5G (5 nm)
Exynos 2100 (5 nm) - International Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
Core Chipset (CPU)
Qualcomm SM8350 Snapdragon 888 5G (5 nm)
Exynos 2100 (5 nm) - International Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
Graphics Power (GPU)
Adreno 660
Mali-G78 MP14 - International Adreno 660 - USA/China
Operating System (OS)
Android 11, upgradable to Android 13
Android 11, up to 4 major Android upgrades, One UI 6.1
Front Camera Specifications
Sensor/lens
N/A
40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF
Video Recording
8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR
4K@30/60fps, 1080p@30fps
Features/Modes
Dual-LED flash, HDR, auto panorama (motorized rotation)
HDR
Rear/Main Camera Specifications
Sensor/lens
64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF8 MP, f/2.4, PDAF, 3x optical zoom12 MP, f/2.2, 112˚, 1/2.55", 1.4µm, dual pixel PDAF
N/A
Telephoto Lens
80mm (telephoto)
No
Ultrawide Lens
14mm (ultrawide)
No
3D ToF Sensor or LiDAR Scanner
N/A
N/A
Video Capabilities
8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR
8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
Features/Modes
Dual-LED flash, HDR, auto panorama (motorized rotation)
Laser AF, LED flash, auto-HDR, panorama
Battery Capacity
Li-Po 5000 mAh
Li-Ion 5000 mAh
Battery Type
non-removable
non-removable
Charging Methods
30W wired, PD3.0
25W wired, PD3.015W wireless (Qi/PMA), 4.5W reverse wireless
Reverse Charging Support
No
Yes
Network Technology
GSM / HSPA / LTE / 5G
GSM / CDMA / HSPA / EVDO / LTE / 5G
SIM-Support
Dual SIM (Nano-SIM, dual stand-by)
Nano-SIM and eSIM or Dual SIM (2 Nano-SIMs and eSIM, dual stand-by)
WiFi Version
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Bluetooth Version
5.2, A2DP, LE, aptX HD, aptX Adaptive
5.2, A2DP, LE
USB Type
USB Type-C 2.0
USB Type-C 3.2, OTG
NFC Supported
Yes
Yes
Headphone Jack Supported
No
No
FM Radio Supported
No
FM radio (Snapdragon model only; market/operator dependent)
Infrared Supported
No
No
Speakers
Yes, with stereo speakers
Yes, with stereo speakers
Dedicated Features
N/A
Samsung DeX, Samsung Wireless DeX (desktop experience support), Ultra Wideband (UWB), support Circle to Search
Durability (Water & Dust)
N/A
N/A











