Xiaomi K80 Ultra vs. iPhone 15 Pro Max: A Deep Dive into Flagship Performance
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🏆 Quick Verdict
For the average user prioritizing a seamless ecosystem, long-term software support, and refined camera processing, the iPhone 15 Pro Max remains the superior choice. However, the Xiaomi K80 Ultra delivers comparable processing power with the Dimensity 9400+ and significantly faster charging, making it a compelling option for power users and gamers.
| PHONES | ||
|---|---|---|
| Phone Names | Xiaomi Redmi K80 Ultra | Apple iPhone 15 Pro Max |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 800 / 850 / 900 / 1700(AWS) / 2100 | HSDPA 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, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 34, 38, 39, 40, 41, 42, 46, 48, 53, 66 - A3106 |
| 5G bands | 1, 3, 5, 7, 8, 26, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA | 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 30, 38, 40, 41, 48, 53, 66, 70, 77, 78, 79 SA/NSA/Sub6 - A3106 |
| Speed | HSPA, LTE, 5G | HSPA, LTE, 5G, EV-DO Rev.A 3.1 Mbps |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G | GSM / CDMA / HSPA / EVDO / LTE / 5G |
| Launch | ||
|---|---|---|
| Announced | 2025, June 26 | 2023, September 12 |
| Status | Available. Released 2025, June 26 | Available. Released 2023, September 22 |
| Body | ||
|---|---|---|
| Build | Glass front, aluminum frame | Glass front, glass back, titanium frame (grade 5) |
| Dimensions | 163.1 x 77.9 x 8.2 mm (6.42 x 3.07 x 0.32 in) | 159.9 x 76.7 x 8.3 mm (6.30 x 3.02 x 0.33 in) |
| SIM | Nano-SIM + Nano-SIM | · Nano-SIM + eSIM + eSIM (max 2 at a time; International)· eSIM + eSIM (8 or more, max 2 at a time; USA)· Nano-SIM + Nano-SIM (China) |
| Weight | 219 g (7.72 oz) | 221 g (7.80 oz) |
| Display | ||
|---|---|---|
| Protection | Scratch/drop-resistant glass | Ceramic Shield glass |
| Resolution | 1280 x 2772 pixels, 19.5:9 ratio (~447 ppi density) | 1290 x 2796 pixels, 19.5:9 ratio (~460 ppi density) |
| Size | 6.83 inches, 114.5 cm2 (~90.2% screen-to-body ratio) | 6.7 inches, 110.2 cm2 (~89.8% screen-to-body ratio) |
| Type | OLED, 68B colors, 144Hz, Dolby Vision, HDR10+, HDR Vivid, 1800 nits (HBM), 3200 nits (peak) | LTPO Super Retina XDR OLED, 120Hz, HDR10, Dolby Vision, 1000 nits (typ), 2000 nits (HBM) |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x3.63 GHz Cortex-X925 & 3x3.3 GHz Cortex-X4 & 4x2.4 GHz Cortex-A720) | Hexa-core (2x3.78 GHz + 4x2.11 GHz) |
| Chipset | Mediatek Dimensity 9400+ (3 nm) | Apple A17 Pro (3 nm) |
| GPU | Immortalis-G925 | Apple GPU (6-core graphics) |
| OS | Android 15, HyperOS 2 | iOS 17, upgradable to iOS 26.1 |
| Memory | ||
|---|---|---|
| Card slot | No | No |
| Internal | 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM | 256GB 8GB RAM, 512GB 8GB RAM, 1TB 8GB 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 | Dual-LED dual-tone flash, HDR (photo/panorama) |
| Triple | - | 48 MP, f/1.8, 24mm (wide), 1/1.28", 1.22µm, dual pixel PDAF, sensor-shift OIS 12 MP, f/2.8, 120mm (periscope telephoto), 1/3.06", 1.12µm, dual pixel PDAF, 3D sensor‑shift OIS, 5x optical zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF TOF 3D LiDAR scanner (depth) |
| Video | 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS | 4K@24/25/30/60fps, 1080p@25/30/60/120/240fps, 10-bit HDR, Dolby Vision HDR (up to 60fps), ProRes, 3D (spatial) video, stereo sound rec. |
| Selfie camera | ||
|---|---|---|
| Features | HDR | HDR, Dolby Vision HDR |
| Single | 20 MP, (wide), 1/2.0", 0.8µm | 12 MP, f/1.9, 23mm (wide), 1/3.6", 1.0µm, PDAF, OIS SL 3D, (depth/biometrics sensor) |
| Video | 1080p@30/60fps | 4K@24/25/30/60fps, 1080p@25/30/60/120fps, gyro-EIS |
| Sound | ||
|---|---|---|
| 35mm jack | No | No |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers |
| Comms | ||
|---|---|---|
| Bluetooth | 5.4, A2DP, LE, LHDC 5 | 5.3, A2DP, LE |
| Infrared port | 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), GLONASS, GALILEO, BDS, QZSS, NavIC |
| Radio | Unspecified | No |
| USB | USB Type-C | USB Type-C 3.2 Gen 2, DisplayPort |
| 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, tri-band, hotspot |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass | Face ID, accelerometer, gyro, proximity, compass, barometer |
| Battery | ||
|---|---|---|
| Charging | 100W wired, PD3.0 Bypass charging | Wired, PD2.0, 50% in 30 min 15W wireless (MagSafe) 15W wireless (Qi2) - requires iOS 17.2 update 4.5W reverse wired |
| Type | Si/C Li-Ion 7410 mAh | Li-Ion 4441 mAh |
| Misc | ||
|---|---|---|
| Colors | Gray, White, Blue, Green | Black Titanium, White Titanium, Blue Titanium, Natural Titanium |
| Models | - | A2849, A3105, A3106, A3108, iPhone16,2 |
| Price | About 310 EUR | € 758.79 / $ 579.87 / £ 628.29 |
| SAR | - | 1.07 W/kg (head) 1.11 W/kg (body) |
| SAR EU | - | 0.98 W/kg (head) 0.98 W/kg (body) |
Xiaomi Redmi K80 Ultra
- Significantly faster 100W wired charging
- Potentially superior multi-core CPU performance with Dimensity 9400+
- PD3.0 and bypass charging for optimized battery health
- Uncertainty regarding camera performance and image processing
- Android ecosystem fragmentation and software update longevity
Apple iPhone 15 Pro Max
- Industry-leading camera system with exceptional video capabilities
- Polished user experience and seamless ecosystem integration
- Long-term software support and security updates
- Slower charging speeds compared to the K80 Ultra
- Higher price point
Display Comparison
The iPhone 15 Pro Max boasts a peak brightness of 1787 nits, ensuring excellent visibility even in direct sunlight. While the K80 Ultra’s display specs are currently unavailable, Xiaomi typically employs high-quality AMOLED panels. The iPhone’s advantage lies in its color accuracy and potentially its LTPO technology, enabling variable refresh rates for power efficiency. The iPhone’s display is likely to have a more refined calibration out of the box, while the K80 Ultra may offer a higher refresh rate for smoother gaming, pending further specifications.
Camera Comparison
The iPhone 15 Pro Max is renowned for its computational photography and video capabilities. While specific sensor details are missing for the K80 Ultra, Xiaomi often focuses on high megapixel counts. The iPhone’s strength lies in its image processing pipeline, delivering consistent and natural-looking results. The K80 Ultra may excel in specific scenarios, such as low-light photography, depending on its sensor size and aperture. The iPhone’s video recording capabilities are industry-leading, offering ProRes and Cinematic mode. The K80 Ultra will need to demonstrate comparable video quality to compete effectively.
Performance
Both devices utilize 3nm chipsets, but their architectures differ significantly. The iPhone 15 Pro Max’s A17 Pro features a hexa-core CPU (2x3.78 GHz + 4x2.11 GHz), prioritizing single-core performance. The K80 Ultra’s Dimensity 9400+ employs an octa-core configuration (1x3.63 GHz Cortex-X925 & 3x3.3 GHz Cortex-X4 & 4x2.4 GHz Cortex-A720), potentially offering better multi-core performance. The Dimensity 9400+’s inclusion of the Cortex-X925 suggests a focus on sustained performance, while the A17 Pro’s efficiency may translate to better thermal management. The K80 Ultra’s RAM configuration (likely LPDDR5x) will be crucial in maximizing the Dimensity 9400+’s potential.
Battery Life
The iPhone 15 Pro Max achieves an impressive 16:01h active use score and an endurance rating of 118h, indicating excellent battery life. The K80 Ultra’s battery capacity is unknown, but its 100W wired charging is a significant advantage. The iPhone 15 Pro Max supports 50% charge in 30 minutes with PD2.0, while the K80 Ultra’s 100W charging promises a much faster top-up. The K80 Ultra also supports PD3.0 and bypass charging, minimizing heat during prolonged charging sessions. The iPhone 15 Pro Max adds 15W wireless charging via MagSafe and Qi2 (requiring iOS 17.2), and 4.5W reverse wired charging.
Buying Guide
Buy the Xiaomi Redmi K80 Ultra if you need uncompromising CPU performance for demanding tasks, prioritize incredibly fast 100W charging, and value a high refresh rate display for gaming. Buy the Apple iPhone 15 Pro Max if you prefer a polished user experience, a mature camera system with consistent results, and the security of Apple’s ecosystem with guaranteed software updates for years to come.