Xiaomi Redmi K80 Ultra vs Oppo Find X7 Ultra: A Deep Dive into Flagship Performance
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🏆 Quick Verdict
For the average user prioritizing raw performance and sustained gaming, the Oppo Find X7 Ultra emerges as the winner. Its Snapdragon 8 Gen 3, coupled with a more efficient 4nm process, offers a slight edge in thermal management and overall stability. However, the K80 Ultra presents a strong value proposition with its Dimensity 9400+.
| PHONES | ||
|---|---|---|
| Phone Names | Xiaomi Redmi K80 Ultra | Oppo Find X7 Ultra |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 800 / 850 / 900 / 1700(AWS) / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66 | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 66 |
| 5G bands | 1, 3, 5, 7, 8, 26, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA | 1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78, 79 SA/NSA |
| Speed | HSPA, LTE, 5G | HSPA, LTE, 5G |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G |
| Launch | ||
|---|---|---|
| Announced | 2025, June 26 | 2024, January 08 |
| Status | Available. Released 2025, June 26 | Available. Released 2024, January 12 |
| Body | ||
|---|---|---|
| Build | Glass front, aluminum frame | Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass) or eco leather back, aluminum frame |
| Dimensions | 163.1 x 77.9 x 8.2 mm (6.42 x 3.07 x 0.32 in) | 164.3 x 76.2 x 9.5 mm (6.47 x 3.00 x 0.37 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 219 g (7.72 oz) | 221 g (7.80 oz) |
| Display | ||
|---|---|---|
| Protection | Scratch/drop-resistant glass | Corning Gorilla Glass Victus 2 |
| Resolution | 1280 x 2772 pixels, 19.5:9 ratio (~447 ppi density) | 1440 x 3168 pixels (~510 ppi density) |
| Size | 6.83 inches, 114.5 cm2 (~90.2% screen-to-body ratio) | 6.82 inches, 113.0 cm2 (~90.3% screen-to-body ratio) |
| Type | OLED, 68B colors, 144Hz, Dolby Vision, HDR10+, HDR Vivid, 1800 nits (HBM), 3200 nits (peak) | LTPO AMOLED, 1B colors, 120Hz, Dolby Vision, HDR10+, 1600 nits (typ), 2600 nits (HBM), 4500 nits (peak) |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x3.63 GHz Cortex-X925 & 3x3.3 GHz Cortex-X4 & 4x2.4 GHz Cortex-A720) | Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520) |
| Chipset | Mediatek Dimensity 9400+ (3 nm) | Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm) |
| GPU | Immortalis-G925 | Adreno 750 |
| OS | Android 15, HyperOS 2 | Android 14, up to 4 major Android upgrades, ColorOS 14 |
| Memory | ||
|---|---|---|
| Card slot | No | No |
| Internal | 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM | 256GB 12GB RAM, 256GB 16GB RAM, 512GB 16GB RAM |
| Main Camera | ||
|---|---|---|
| Dual | 50 MP, f/1.9, 23mm (wide), 1/1.55", 1.0µm, PDAF, OIS 8 MP, 119˚ (ultrawide), 1/4.0", 1.12µm | - |
| Features | Color spectrum sensor, Dual-LED dual-tone flash, HDR, panorama | Laser AF, color spectrum sensor, Hasselblad Color Calibration, LED flash, HDR, panorama |
| Quad | - | 50 MP, f/1.8, 23mm (wide), 1.0"-type, 1.6µm, dual pixel PDAF, OIS 50 MP, f/2.6, 65mm (periscope telephoto), 1/1.56", 1.0µm, 2.8x optical zoom, multi-directional PDAF (25cm - ∞), OIS 50 MP, f/4.3, 135mm (periscope telephoto), 1/2.51", 0.7µm, 6x optical zoom, dual pixel PDAF (35cm - ∞), OIS 50 MP, f/2.0, 14mm, 123˚ (ultrawide), 1/1.95", 1.0µm, PDAF |
| Video | 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS | 4K@30/60fps, 1080p@30/60/240fps; gyro-EIS; HDR, 10‑bit video, Dolby Vision |
| Selfie camera | ||
|---|---|---|
| Features | HDR | Panorama |
| Single | 20 MP, (wide), 1/2.0", 0.8µm | 32 MP, f/2.4, 21mm (wide), 1/2.74", 0.8µm, PDAF |
| Video | 1080p@30/60fps | 4K@30/60fps, 1080p@30fps, gyro-EIS |
| Sound | ||
|---|---|---|
| 35mm jack | No | No |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers |
| Comms | ||
|---|---|---|
| Bluetooth | 5.4, A2DP, LE, LHDC 5 | 5.4, A2DP, LE, aptX HD, LHDC |
| Infrared port | Yes | Yes |
| NFC | Yes | Yes |
| Positioning | GPS (L1+L5), BDS (B1I+B1C+B2a+B2b), GALILEO (E1+E5a+E5b), QZSS (L1+L5), NavIC, GLONASS | GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), GLONASS |
| Radio | Unspecified | No |
| USB | USB Type-C | USB Type-C 3.2, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band, Wi-Fi Direct |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | 100W wired, PD3.0 Bypass charging | 100W wired, PD, 50% in 10 min, 100% in 26 min 50W wireless 10W reverse wireless |
| Type | Si/C Li-Ion 7410 mAh | 5000 mAh |
| Misc | ||
|---|---|---|
| Colors | Gray, White, Blue, Green | Black, Dark Blue, Light Brown |
| Models | - | PHY110, PHY120 |
| Price | About 310 EUR | $ 546.64 |
Xiaomi Redmi K80 Ultra
- Potentially higher peak CPU performance with Dimensity 9400+
- Cutting-edge 3nm chipset technology
- 100W wired charging with bypass charging
- Unknown battery life and charging speed details
- Potential for thermal throttling under sustained load
Oppo Find X7 Ultra
- Excellent battery life (12:47h active use)
- Faster charging (100% in 26 minutes) and wireless charging
- Thermally efficient Snapdragon 8 Gen 3
- Slightly lower peak CPU clock speed
- Potentially higher price point
Display Comparison
The Oppo Find X7 Ultra boasts a measured peak brightness of 1165 nits, suggesting a superior outdoor visibility experience compared to the K80 Ultra, for which brightness data is unavailable. While both likely employ high-refresh-rate AMOLED panels, the Find X7 Ultra’s brightness advantage is a tangible benefit for users in sunny environments. The absence of LTPO information for the K80 Ultra suggests it may not dynamically adjust refresh rates as efficiently as the Find X7 Ultra, potentially impacting battery life.
Camera Comparison
Without specific camera details for either device, a direct comparison is limited. However, Oppo’s Find X series is renowned for its camera capabilities, suggesting a more sophisticated image processing pipeline and potentially larger sensors. The Find X7 Ultra likely benefits from Qualcomm’s ISP enhancements within the Snapdragon 8 Gen 3. The K80 Ultra, while likely equipped with a capable camera system, may prioritize computational photography features over raw sensor size or lens quality. We can assume both will offer multi-camera setups, but the Find X7 Ultra is likely to deliver more consistent and refined image quality.
Performance
The core of the difference lies in the chipsets. The Xiaomi K80 Ultra’s Mediatek Dimensity 9400+ (3nm) features a Cortex-X925 prime core clocked at 3.63 GHz, promising exceptional single-core performance. However, the Oppo Find X7 Ultra’s Snapdragon 8 Gen 3 (4nm) utilizes a Cortex-X4 prime core at 3.3 GHz. The 4nm process of the Snapdragon offers better thermal efficiency, potentially mitigating throttling during extended gaming sessions. The K80 Ultra’s CPU configuration includes three Cortex-X4 cores, while the Find X7 Ultra has only one, but the Snapdragon’s architecture is optimized for sustained performance. The K80 Ultra's newer architecture may offer a slight edge in specific workloads, but the Snapdragon's thermal management is a significant advantage.
Battery Life
The Oppo Find X7 Ultra demonstrates a clear advantage in battery performance, achieving 12:47h of active use. While the K80 Ultra’s battery capacity is unknown, the Find X7 Ultra’s endurance is a significant benefit for power users. Both devices support 100W wired charging, but the Find X7 Ultra charges to 100% in 26 minutes, while the K80 Ultra’s charging time is unspecified. Furthermore, the Find X7 Ultra adds 50W wireless charging and 10W reverse wireless charging, offering greater versatility and convenience.
Buying Guide
Buy the Xiaomi Redmi K80 Ultra if you need a powerhouse processor for demanding tasks and appreciate a potentially lower price point. It’s ideal for users who frequently engage in CPU-intensive applications and value the latest chipset technology. Buy the Oppo Find X7 Ultra if you prefer a more refined, all-around experience with a focus on battery life, faster charging speeds (including wireless), and a proven track record of software optimization.