Asus Zenfone 9 vs Samsung Galaxy S21 Ultra
70
out 100
VS
67
out 100
Compared 2 smartphones : Asus Zenfone 9 Manufactured in August, 2022, with display 5.9 with chipsetQualcomm Snapdragon 8 Plus Gen 1, vs Samsung Galaxy S21 Ultra, Manufactured in February, 2021 with chipsetSamsung Exynos 2100. Below are specs, tests, pros and cons for each device
Key Differences
Reasons to choose Asus Zenfone 9
- Lighter design: 169g vs 227g
- Includes charger
Reasons to choose Samsung Galaxy S21 Ultra
- Larger display: 6.8in
- Higher pixel density: 515ppi
- Higher battery capacity: 5000mAh vs 4300mAh
- Supports newer USB: 3.2 vs 2
- Supports Dolby Atmos
- Built-in eSIM
Versions
| Memory Options | - 6/128 GB - 8/128 GB - 8/256 GB - 16/256 GB |
- 12/128 GB - 12/256 GB - 12/512 GB - 16/256 GB - 16/512 GB |
Review
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
Adjust each parameter’s importance to find the best match for you.
Tests & specs
Specs & test comparisonDisplay
| Type | Super AMOLED | Dynamic AMOLED |
| Size | 5.9 in | 6.8 in |
| Resolution | 1080x2400 pixels | 1440x3200 pixels |
| Aspect ratio | 20:9 | 20:9 |
| Pixel density | 445 ppi | 515 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | No | Yes (10-120 Hz) |
| Max brightness | 800 nits | 1500 nits |
| HDR support | Yes HDR10+ | Yes HDR10+ |
| Screen-to-body ratio | 84.3 % | 89.5 % |
| Features | - DCI-P3 - Always-On Display - DC dimming |
- DCI-P3 - Always-On Display |
| sRGB gamut | 98.8 % | n/a |
| PWM (Flicker) | 478 Hz | n/a |
| Response time | 2 ms | n/a |
| Contrast | ∞ Infinite | n/a |
Design & Build
| Height | 146.5 mm (5.77 in) | 165.1 mm (6.5 in) |
| Width | 68.1 mm (2.68 in) | 75.6 mm (2.98 in) |
| Thickness | 9.1 mm (0.36 in) | 8.9 mm (0.35 in) |
| Weight | 169 g (5.96 oz) | 227 g (8.01 oz) |
| Water resistance | IP68 | IP68 |
| Back panel | Plastic | Glass |
| Frame | Metal | Metal |
| Colors | - White - Black - Blue - Red |
- Black - Silver - Gray - Blue |
| Fingerprint sensor | Yes In-Button | Yes In-Display |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 8 Plus Gen 1 | Samsung Exynos 2100 |
| Max Frequency | 3190 MHz | 2900 MHz |
| CPU Cores | 8 (1 + 3 + 4) | 8 (1 + 3 + 4) |
| Architecture | - 4/2 (Cortex-A510) - 3/2.75 (Cortex-A710) - 1/3.2 (Cortex-X2) |
- 4/2.2 (Cortex-A55) - 3/2.81 (Cortex-A78) - 1/2.91 (Cortex-X1) |
| Process | TSMC | Samsung |
| Transistor Size | 4 nm | 5 nm |
| Neural Processor | Hexagon | Yes |
| Graphics | Adreno 730 | Mali-G78 MP14 |
| GPU Cores | 1024 | 896 |
| GPU Frequency | 900 MHz | 854 MHz |
| FLOPS | 1843.2 GFLOPS | 1530.4 GFLOPS |
| Geekbench 6 (Single-Core) | 1776 | 1449 |
| Geekbench 6 (Multi-Core) | 4732 | 3892 |
| CPU | 399673 | 232358 |
| GPU | 499023 | 256356 |
| Memory | 194900 | 163007 |
| UX | 270694 | 191217 |
| NanoReview Score | 1364290 | 843008 |
| Max Surface Temp. | n/a | 40.8 °C |
| Stability | n/a | 69 % |
| Graphics Test | n/a | 31 fps |
| Graphics Score | n/a | 5221 |
Memory
| RAM Size | - 8 GB - 16 GB |
- 12 GB - 16 GB |
| Memory Type | LPDDR5 | LPDDR5 |
| Memory Frequency | 3200 MHz | 2750 MHz |
| Channels | 4 | 2 |
| Storage Capacity | - 128 GB - 256 GB | - 128 GB - 256 GB - 512 GB |
| Storage Type | UFS 3.1 | UFS 3.1 |
| Memory Card | No | No |
Software
| OS | Android 12 (Upgradeable to Android 14) | Android 11 (Upgradeable to Android 14) |
| OS Size | n/a | 26.4 GB |
| UI Skin | ZenUI 9 | One UI 6 |
Battery
| Volume | 4300 mAh | 5000 mAh |
| Max Charging Power | 30 W | 25 W |
| Battery Type | Li-Po | Li-ion |
| Removable | No | No |
| Wireless Charging | No | Yes (15 W) |
| Reverse Charging | Yes | Yes (Wireless) |
| Fast Charging | Yes (57% in 30 min) | Yes (54% in 30 min) |
| Full Charge Time | 1:15 h | 1:11 h |
| Web Browsing | 08:26 h | 07:58 h |
| Video Playback | 14:17 h | 13:59 h |
| Games | 05:47 h | 05:14 h |
| Standby Mode | 92 h | 111 h |
Main camera
| Matrix | 50 MP | 108 MP |
| Photo resolution | 8192x6144 pixels | 12000x9000 pixels |
| Zoom | Digital | Optical, 10x |
| Flash | LED | Dual LED |
| Stabilization | Optical | Optical |
| 8K Recording | Up to 24FPS | Up to 24FPS |
| 4K Recording | Yes (Up to 120 fps) | Yes (Up to 60 fps) |
| 1080p Recording | Yes (Up to 60 fps) | Yes (Up to 60 fps) |
| Slow Motion | 480 fps (720p) | 960 fps (720p) |
| Wide-angle lens | 113 ° | 120 ° |
| Lenses count | Standard: 50 MP Ultra-wide: 12 MP |
Standard: 108 MP Telephoto: 10 MP Telephoto: 10 MP Ultra-wide: 12 MP |
| Features | - Bokeh effect - Pro mode - RAW support |
- Bokeh effect - Pro mode - RAW support |
| Matrix | 50 MP | 108 MP |
| Aperture | f/1.9 | f/1.8 |
| Focal length | 238 mm | 26 mm |
| Sensor | Sony IMX766 | Samsung S5KHM3 |
| Sensor size | 1/1.56 | 1/1.33 |
| Pixel size | 1 μm | 0.8 μm |
| Autofocus | Phase autofocus | Laser autofocus |
| Stabilization | Optical | Optical |
| Matrix | n/a | 10 MP |
| Aperture | n/a | f/4.9 |
| Focal length | n/a | 240 mm |
| Sensor | n/a | Samsung S5K3J1 |
| Sensor size | n/a | 1/2.65 |
| Pixel size | n/a | 1.22 μm |
| Stabilization | n/a | Optical |
| Matrix | 12 MP | 12 MP |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 144 mm | 13 mm |
| Sensor | Sony IMX363 | Sony IMX563 |
| Sensor size | 1/2.55 | 1/2.55 |
| Pixel size | 1.4 μm | 1.4 μm |
| Stabilization | Digital | Digital |
| Bokeh | n/a | 70 |
| Preview | n/a | 67 |
| Zoom | n/a | 106 |
Front camera
| Matrix | 12 MP | 40 MP |
| Photo resolution | 4247x2826 pixels | 7864x5200 pixels |
| Aperture | f/2.5 | f/2.2 |
| Focal length | 275 mm | 26 mm |
| Sensor | Sony IMX663 | Samsung S5KGH1 |
| Sensor size | 1/2.93 | 1/2.65 |
| Pixel size | 1.22 μm | 0.7 μm |
| Autofocus | Phase autofocus (Dual Pixel) | Phase autofocus |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 30 fps | 2160p (4K) at 60 fps |
| TOF 3D sensor | No | No |
Connectivity
| Wi-Fi version | Wi-Fi 6E (802.11 a/b/g/n/ac/ax) | Wi-Fi 6E (802.11 a/b/g/n/ac/ax) |
| Wi-Fi features | - Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5.2 | 5.2 |
| Bluetooth features | LE | LE, A2DP |
| USB type | USB Type-C | USB Type-C |
| USB version | 2 | 3.2 |
| USB features | - Charging - USB Storage Mode - OTG |
- Charging - USB Storage Mode - USB-Host mode - OTG |
| GPS | - GPS - GLONASS - Beidou - Galileo - QZSS - NAVIC |
- GPS - GLONASS - Beidou - Galileo |
| NFC* | Yes | Yes |
| Infrared Port | No | No |
| SIM Count* | 2 | 2 |
| SIM Type | Nano | Nano |
| SIM Mode | Dual SIM Standby | Dual SIM Standby |
| eSIM Support * | No | Yes |
| Hybrid Slot | No | No |
| 2G Bands | EDGE/GPRS/GSM (2, 3, 5, 8) | GSM 850, 900, 1800, 1900 MHz |
| 3G Bands | WCDMA (Bands 1, 2, 4, 5, 6, 8, 19) | WCDMA Band 1, 2, 4, 5, 8 |
| LTE Bands* | LTE (B(B/B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B34/B38/B39/B40/B41/B42)) | LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B38/B39/B40/B41/B66) |
| LTE category | 20 | 24 |
| 5G Support | Yes | Yes |
Sound
| Speakers | Stereo | Stereo |
| 3.5 mm Jack | Yes | No |
| FM Radio | No | No |
| Dolby Atmos | No | Yes |
Other
| Class | Flagship | Flagship |
| Announced | July, 2022 yr | January, 2021 yr |
| Release Date | August, 2022 yr | February, 2021 yr |
| Launch Price ($) | 800 | 1200 |
| Sensors | - Hall Sensor - Proximity Sensor - Gyroscope - Accelerometer - Ambient Light Sensor - Compass - Fingerprint sensor |
- Hall Sensor - Barometer - Proximity Sensor - Gyroscope - Accelerometer - Ambient Light Sensor - Compass - Fingerprint sensor |
| Charger Included | Yes 30 W | n/a |
*
Attention!
Config, frequencies, NFC, and other specs may vary by region.
Results
No clear favorite identified yet; updates may follow as new data arrives.
Survey
Total Votes: 0
