Asus Zenfone 7 Pro vs OnePlus 9 Pro: A Detailed Comparison of Flagship Power
| Phones Images | |||||
|---|---|---|---|---|---|
|
🏆 Quick Verdict
For the average user prioritizing fast charging and a more modern camera experience, the OnePlus 9 Pro is the better choice. However, the Zenfone 7 Pro’s excellent endurance rating and still-capable Snapdragon 865+ make it a compelling option for those seeking long battery life and value.
| PHONES | ||
|---|---|---|
| Phone Names | Asus Zenfone 7 Pro | OnePlus 9 Pro |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 29, 38, 39, 40, 41 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - EU |
| 5G bands | 1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 77, 78 SA/NSA | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA - EU |
| Speed | HSPA 42.2/5.76 Mbps, LTE (5CA) Cat19 1800/150 Mbps, 5G 3.6 Gbps DL | HSPA 42.2/5.76 Mbps, LTE Cat20 2000/200 Mbps, 5G |
| Technology | GSM / HSPA / LTE / 5G | GSM / CDMA / HSPA / LTE / 5G |
| - | 1, 3, 28, 41, 78, 79 SA/NSA - CN | |
| Launch | ||
|---|---|---|
| Announced | 2020, August 26. Released 2020, September 01 | 2021, March 23 |
| Status | Discontinued | Available. Released 2021, March 30 |
| Body | ||
|---|---|---|
| Build | Glass front (Gorilla Glass 6), glass back (Gorilla Glass 3), aluminum frame | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame |
| Dimensions | 165.1 x 77.3 x 9.6 mm (6.5 x 3.04 x 0.38 in) | 163.2 x 73.6 x 8.7 mm (6.43 x 2.90 x 0.34 in) |
| SIM | Nano-SIM + Nano-SIM | · Nano-SIM· Nano-SIM + Nano-SIM |
| Weight | 230 g (8.11 oz) | 197 g (6.95 oz) |
| - | IP68 dust/water resistant (up to 1.5m for 30 min) | |
| Display | ||
|---|---|---|
| Protection | Corning Gorilla Glass 6 | Corning Gorilla Glass 5 |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) | 1440 x 3216 pixels, 20:9 ratio (~525 ppi density) |
| Size | 6.67 inches, 107.4 cm2 (~84.2% screen-to-body ratio) | 6.7 inches, 108.4 cm2 (~90.3% screen-to-body ratio) |
| Type | Super AMOLED , 90Hz, HDR10+, 700 nits (HBM) | LTPO Fluid2 AMOLED, 1B colors, 120Hz, HDR10+, 1300 nits (peak) |
| - | Always-on display | |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x3.10 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55) | Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55 |
| Chipset | Qualcomm SM8250 Snapdragon 865 5G+ (7 nm+) | Qualcomm SM8350 Snapdragon 888 5G (5 nm) |
| GPU | Adreno 650 | Adreno 660 |
| OS | Android 10, upgradable to Android 12, ZenUI | Android 11, upgradable to Android 14, OxygenOS 14 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC (dedicated slot) | No |
| Internal | 256GB 8GB RAM | 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM |
| UFS 3.1 | UFS 3.1 | |
| Main Camera | ||
|---|---|---|
| Features | Dual-LED flash, HDR, auto panorama (motorized rotation) | Laser AF, color spectrum sensor, Hasselblad Color Calibration, dual-LED flash, HDR, panorama |
| Quad | - | 48 MP, f/1.8, 23mm (wide), 1/1.43", 1.12µm, multi-directional PDAF, OIS 8 MP, f/2.4, 77mm (telephoto), 1.0µm, PDAF, OIS, 3.3x optical zoom 50 MP, f/2.2, 14mm (ultrawide), 1/1.56", 1.0µm, AF 2 MP, f/2.4, (monochrome) |
| Single | - | 16 MP, f/2.4, (wide), 1/3.06", 1.0µm |
| Triple | 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF, OIS 8 MP, f/2.4, 80mm (telephoto), PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 113˚, 17mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF | - |
| Video | 8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR | 8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS |
| Selfie camera | ||
|---|---|---|
| Features | Dual-LED flash, HDR, auto panorama (motorized rotation) | HDR |
| Single | - | 16 MP, f/2.4, (wide), 1/3.06", 1.0µm |
| Triple | Motorized flip-up main camera module | - |
| Video | 8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR | 1080p@30fps, gyro-EIS |
| Sound | ||
|---|---|---|
| 3.5mm jack | No | No |
| 35mm jack | No | No |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers |
| 24-bit/192kHz audio | 24-bit/192kHz audio | |
| Comms | ||
|---|---|---|
| Bluetooth | 5.0, A2DP, LE, aptX Adaptive | 5.2, A2DP, LE, aptX HD |
| NFC | Yes | Yes |
| Positioning | GPS (L1+L5), GLONASS (L1), BDS (B1+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) | GPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a) |
| Radio | No | No |
| USB | USB Type-C | USB Type-C 3.1, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNA |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | 30W wired, PD3.0, 60% in 34 min, 100% in 93 min Reverse wired | 65W wired, PD, 100% in 29 min 50W wireless, 100% in 43 min 5W reverse wireless |
| Type | Li-Po 5000 mAh | Li-Po 4500 mAh |
| Misc | ||
|---|---|---|
| Colors | Aurora Black, Pastel White | Morning Mist, Forest Green, Stellar Black |
| Models | ZS671KS, ASUS_I002DD | LE2121, LE2125, LE2123, LE2120, LE2127 |
| Price | About 670 EUR | € 246.17 / $ 264.95 / £ 287.00 |
| Tests | ||
|---|---|---|
| Battery life | Endurance rating 99h | Endurance rating 86h |
| Camera | Photo / Video | Photo / Video |
| Display | Contrast ratio: Infinite (nominal) | - |
| Loudspeaker | -26.6 LUFS (Good) | -24.1 LUFS (Very good) |
| Performance | AnTuTu: 602934 (v8) GeekBench: 3302 (v5.1) GFXBench: 46fps (ES 3.1 onscreen) | - |
Asus Zenfone 7 Pro
- Exceptional battery endurance (99h)
- Compact and ergonomic design
- Flip camera offers unique versatility
- Older Snapdragon 865+ chipset
- Slower charging speeds (30W wired)
- Less advanced camera system
OnePlus 9 Pro
- Faster Snapdragon 888 chipset
- Significantly faster charging (65W wired, 50W wireless)
- More refined camera system with Hasselblad collaboration
- Shorter battery life (86h)
- Larger and heavier design
- Potentially more thermal throttling under sustained load
Display Comparison
The OnePlus 9 Pro boasts a brighter display, reaching 859 nits compared to the Zenfone 7 Pro’s 741 nits. This translates to better visibility under direct sunlight. While both displays have an infinite (nominal) contrast ratio, the OnePlus 9 Pro likely benefits from a more advanced panel technology, potentially LTPO, offering variable refresh rates for improved efficiency, though this isn't explicitly stated in the provided data. The Zenfone 7 Pro’s display, while still excellent, will appear less vibrant in comparison.
Camera Comparison
Both phones feature capable camera systems, but the OnePlus 9 Pro benefits from its collaboration with Hasselblad. While the provided data doesn’t detail sensor sizes or specific camera features, the OnePlus 9 Pro’s later release likely incorporates more advanced image processing algorithms and potentially larger sensors for improved low-light performance. The Zenfone 7 Pro’s flip camera mechanism is a unique feature, but doesn’t inherently guarantee superior image quality. The OnePlus 9 Pro’s camera system is geared towards a more natural color profile, while the Zenfone 7 Pro’s processing style is unknown without further data.
Performance
The OnePlus 9 Pro’s Snapdragon 888 (5nm) represents a generational leap over the Zenfone 7 Pro’s Snapdragon 865+ (7nm+). The 5nm process node allows for greater transistor density and improved thermal efficiency, potentially leading to sustained performance under heavy loads. The Cortex-X1 prime core in the 888 also offers a performance advantage over the 865+'s Cortex-A77. However, the Zenfone 7 Pro’s cooling solution and efficient chipset still deliver a smooth experience for most tasks. The 888's architecture is more modern, offering benefits in AI processing and 5G connectivity.
Battery Life
The Zenfone 7 Pro’s endurance rating of 99 hours significantly surpasses the OnePlus 9 Pro’s 86 hours. This suggests the Zenfone 7 Pro offers considerably longer battery life on a single charge. However, the OnePlus 9 Pro compensates with dramatically faster charging: 65W wired (100% in 29 minutes), 50W wireless (100% in 43 minutes), and 5W reverse wireless. The Zenfone 7 Pro’s 30W wired charging (100% in 93 minutes) is considerably slower. The trade-off is clear: the Zenfone 7 Pro prioritizes longevity, while the OnePlus 9 Pro prioritizes convenience.
Buying Guide
Buy the Asus Zenfone 7 Pro if you need exceptional battery life and a compact form factor, and are comfortable with a slightly older chipset. It’s ideal for users who prioritize longevity and don’t require the latest camera innovations. Buy the OnePlus 9 Pro if you prefer a more polished camera system, significantly faster charging (both wired and wireless), and a brighter, more vibrant display. This phone suits users who demand the latest features and are willing to charge more frequently.