Xiaomi 18 Pro Max vs Samsung Galaxy S27 Ultra
One of these devices is still rumored — its specs are not official yet and may change before launch.
Which is better?
- Samsung Galaxy S27 Ultra wins narrowly over Xiaomi 18 Pro Max — 8.1 overall against 7.7.
- Samsung Galaxy S27 Ultra takes 3 of the 6 categories both phones are scored in.
- Xiaomi 18 Pro Max has the bigger battery — 8,500 mAh against 5,700 mAh.
- Xiaomi 18 Pro Max charges faster — 100W wired against 60W.
Category scores
| Category | Xiaomi 18 Pro Max | Samsung Galaxy S27 Ultra |
|---|---|---|
| Performance | 7.9Tie | 7.9Tie |
| Camera | 8.1Better | 7.9 |
| Display | 7.9 | 8.9Better |
| Battery | 8.3 | 8.5Better |
| Design & Build | 6.2 | — |
| Software | 6.3 | 7.4Better |
| Audio | 7.8 | — |
| Call Quality | 8.3Tie | 8.3Tie |
Open the interactive comparisonRadar chart, winner highlights and a differences-only view.
Full specifications side by side
| Specification | Xiaomi 18 Pro Max | Samsung Galaxy S27 Ultra |
|---|---|---|
| Network | ||
| Technology | GSM / WCDMA / LTE / 5G | 5G |
| Bands 2g | GSM: B2 / B3 / B5 / B8 | — |
| Bands 3g | WCDMA: B1 / B2 / B4 / B5 / B6 / B8 / B19 | — |
| Bands 4g | FDD-LTE: B1 / B2 / B3 / B4 / B5 / B7 / B8 / B12 / B13 / B14 / B17 / B18 / B19 / B20 / B25 / B26 / B28 / B29 / B66 / B71; TDD-LTE: B34 / B38 / B39 / B40 / B41 / B42 / B43 / B48 | — |
| Bands 5g | n1 / n2 / n3 / n5 / n7 / n8 / n12 / n13 / n14 / n18 / n20 / n25 / n26 / n28 / n29 / n38 / n40 / n41 / n48 / n66 / n70 / n71 / n77 / n78 / n79 / n80 / n81 / n83 / n84 / n89 | — |
| Launch | ||
| Status | Available. Released 2026, September 23 | Rumored. Exp. release 2027 |
| Release Date | 2026, September 23 | Exp. announcement 2027 |
| Body | ||
| Dimensions | 163.39 x 77.6 x 8.39 mm (fiberglass versions) / 8.47 mm thick (glass versions) | 163.8 x 78.3 x 8.0 mm |
| Weight | 235 g (fiberglass versions) / 240 g (glass versions) | — |
| Build | Fiberglass finish (Black, White, Ice Peach Pink) or glass finish (Galaxy Blue, Transparent Edition) | — |
| Sim | Dual Nano-SIM | Nano-SIM + eSIM |
| Display | ||
| Type | AMOLED, Super Pixel 2.0 smart privacy screen, up to 120Hz, up to 300Hz touch sampling, BT.2020, 4000 nits multi-scene peak brightness, full-brightness DC dimming, HDR10+, HDR Vivid, Dolby Vision; secondary rear display: 2.9-inch AMOLED, 976 x 596, up to 120Hz, 4000 nits peak | Dynamic AMOLED 2X, LTPO, 120Hz, Privacy Display |
| Size | 6.9 inches | 6.9 inches |
| Resolution | 2624 x 1208 pixels | 1440 x 3120 pixels |
| Protection | Xiaomi Dragon Crystal Glass 3.0 | — |
| Platform | ||
| Os | Xiaomi HyperOS 4 | Android 17 |
| Chipset | Snapdragon 8 Elite Extreme Gen 6 (TSMC 2nm) | Snapdragon 8 Elite Extreme Gen 6 (for Galaxy) |
| Cpu | Qualcomm 4th-generation Oryon architecture processor, up to 5GHz | Octa-core |
| Gpu | Adreno GPU | Adreno 850 |
| Memory | ||
| Internal | 256GB / 512GB / 1TB UFS 4.1 storage with 12GB / 16GB LPDDR5X RAM (up to 16GB + 1TB) | 256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM |
| Card Slot | — | No |
| Main Camera | ||
| Triple | 200MP Leica main camera, Light Hunter 960L sensor, 1/1.28-inch, f/1.67, 23mm equivalent, OIS, QPD focus; 200MP Leica periscope telephoto, 1/1.56-inch sensor, f/2.4, 3.2x optical zoom, 12cm telephoto macro, OIS; 50MP Leica ultra-wide, f/2.4, 17mm equivalent, 102-degree field of view, 5cm super macro, AF | 200 MP (wide), OIS + 50 MP (ultrawide) + 50 MP (periscope telephoto, 5x), OIS |
| Features | Leica Summilux high-speed lens, Leica dual native image quality, rear-screen selfie / preview, dynamic photos, Super Night Scene, Master Lens Package, Dolby Vision, motion tracking focus | OIS, PDAF, LED flash |
| Video | 8K video at 30fps; 4K video at 30 / 60 / 120fps; 1080p video at 30 / 60fps; 720p video at 30fps; slow motion: 720p 120 / 240 / 480 / 960 / 1920fps, 1080p 120 / 240 / 960fps | — |
| Selfie Camera | ||
| Single | 50MP front camera | 16 MP |
| Features | Dynamic photos, smart beauty, portrait bokeh, face fill light, photo/video watermarks, video beauty, gesture / voice / touch capture | — |
| Video | 4K video at 30 / 60fps; 1080p video at 30 / 60fps; 720p video at 30fps | — |
| Sound | ||
| Loudspeaker | Stereo triple speakers, Dolby Atmos, Hi-Res & Hi-Res Audio Wireless certified | — |
| 3 5mm Jack | No - USB Type-C digital earphones only | — |
| Connectivity | ||
| Wlan | Wi-Fi 7, Wi-Fi 6 Enhanced, Wi-Fi 5, Wi-Fi 4 and 802.11a/b/g; 2.4GHz + 5GHz, MLO, 2.4GHz 2x2 MIMO, 5GHz 4x4 MIMO, 8x8 Sounding for MU-MIMO, Wi-Fi Direct, Miracast, dual-band concurrency | Wi-Fi 7 |
| Bluetooth | Bluetooth 6.0, Dual-Bluetooth; SBC / AAC / AptX / AptX HD / AptX Adaptive / LDAC / LHDC 5.0 / LC3 / MIHC | 6.0 |
| Positioning | Beidou: B1I + B1C + B2a; GPS: L1 + L5; Galileo: E1 + E5a; GLONASS: G1; QZSS: L1 + L5; NavIC: L5; AGNSS, data network positioning, Wi-Fi network positioning, sensor-assisted positioning | — |
| Nfc | Yes - multifunctional NFC (transit cards, Mi Pay, access cards, car keys) | Yes |
| Usb | USB Type-C, USB 3.2 Gen 1 | USB Type-C 3.2 |
| Features | ||
| Sensors | Proximity sensor, in-display ambient light (colour temperature) sensor, rear ambient light (colour temperature) sensor, accelerometer, gyroscope, electronic compass, X-axis linear motor, infrared remote control, flicker sensor, laser focus sensor, barometer, Hall sensor, 3D ultrasonic in-display fingerprint | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer |
| Battery | ||
| Type | 8500 mAh | 5700 mAh |
| Charging | 100W Xiaomi Pengpai (Surge) wired fast charging, 50W Xiaomi Pengpai wireless fast charging, 27W wired reverse charging, wireless reverse charging; supports QC3+ / QC3.0 / QC2.0, PD3.0 / PD2.0 and 100W PPS fast-charge protocols | 60W wired, 25W wireless |
| Misc | ||
| Colors | Black, White, Ice Peach Pink, Galaxy Blue, Transparent Edition | — |
| Price | From CNY 6,999 (China) | — |
| Models | — | SM-S958, SM-S958U, SM-S958B |
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