In early 2026, Xiaomi delivers two compelling flagship contenders under its umbrella: the Xiaomi 17 Ultra (the premium imaging beast from the main lineup) and the POCO F8 Ultra (the performance-focused “flagship killer” from the sub-brand). Both launched late 2025 (POCO F8 Ultra in November, Xiaomi 17 Ultra in December in China, with global rollout for the 17 Ultra around February 2026), run on Android 16 with HyperOS 3, and pack the top-tier Qualcomm Snapdragon 8 Elite Gen 5 chipset.
If you’re deciding between these in 2026, here’s a head-to-head breakdown to help you choose.
Design and Build
Both feature massive 6.9-inch displays and similar dimensions, making them large, premium-feeling slabs.
- Xiaomi 17 Ultra: Slightly thicker (around 8.3–8.5 mm) and heavier (224–230 g), with premium materials like aluminum frame, eco-leather or silicone polymer back options, and IP68 rating. It emphasizes a sophisticated, Leica-branded aesthetic with eye-catching colors like green for global markets.
- POCO F8 Ultra: Slimmer at ~7.9–8.3 mm and lighter (218–220 g), using glass front (Poco Shield Glass), aluminum frame, and fiber-reinforced plastic or silicone back. It has a more aggressive, gamer-oriented vibe.
The Xiaomi 17 Ultra feels more luxurious, while the POCO prioritizes a balanced, less bulky hold.
Display
They’re nearly identical here—both rock a 6.9-inch LTPO AMOLED panel with 1200 x 2608 resolution (sharp 1.5K-ish), 120Hz refresh rate, HDR10+/Dolby Vision support, and high peak brightness.
- Xiaomi 17 Ultra edges ahead with LTPO tech for better efficiency, higher PWM dimming (2160Hz), and up to 3500 nits peak brightness.
- POCO F8 Ultra hits similar peaks (~3500 nits in some modes) but may cap lower in sustained HBM (~2000 nits).
Both deliver stunning visuals for media, gaming, and outdoor use—differences are minor in real-world viewing.
Performance and Software
Equal firepower: Snapdragon 8 Elite Gen 5 (3nm) crushes gaming, multitasking, and AI tasks. RAM starts at 12GB (up to 16GB on higher variants), with fast LPDDR5X and UFS storage.
- Both run HyperOS 3 on Android 16, with smooth optimizations and long update support expected.
- Real-world: Expect flagship-level speed on both—no throttling issues in extended gaming sessions.
Tie here—pure performance is neck-and-neck.
Camera System
This is where they diverge significantly.
- Xiaomi 17 Ultra: Leica-tuned triple setup shines as the imaging king—50MP main (1-inch sensor for ultra-dynamic range), 50MP ultrawide, and standout 200MP periscope telephoto (up to 4.3x optical zoom). Front camera is 50MP. It excels in low-light, color accuracy, portrait modes, and night photography with advanced optical design (APO lenses, high dynamic range).
- POCO F8 Ultra: 50MP main + 50MP ultrawide + 50MP telephoto (includes periscope debut for Poco). Front is 32MP. Solid upgrades over past POCO models, but lacks the 200MP zoom monster and Leica tuning depth.
If photography (especially zoom, night shots, and professional-grade results) matters, the Xiaomi 17 Ultra dominates.
Battery and Charging
Battery life is excellent on both thanks to massive cells and efficient chip.
- Xiaomi 17 Ultra: 6800mAh (China spec; global may be ~6000mAh in some rumors), 90W wired + 50W wireless.
- POCO F8 Ultra: 6500mAh, strong fast charging (likely 90W+ wired).
The Xiaomi offers slightly better endurance, especially if you get the full-capacity version.
Price and Value
This is the decisive factor for many.
- POCO F8 Ultra: Starts around $700–800 (e.g., ~$729 for 12/256GB, up to ~$800–900 for higher configs). True “flagship killer” pricing.
- Xiaomi 17 Ultra: Premium tier, around $1000–1200+ (e.g., ~$999–1200 for base, up to €1400 equivalent in Europe for 16/512GB or 1TB Leica Edition).
The POCO delivers ~90–95% of the experience at significantly lower cost.
Which One Should You Buy in 2026?
- Choose the Xiaomi 17 Ultra if:
- Camera quality is your top priority (zoom, low-light mastery, Leica color science).
- You want the absolute premium build, slightly better battery/display tweaks, and don’t mind paying flagship prices.
- You’re after the “best” Xiaomi imaging flagship to rival Galaxy S26 Ultra or similar.
- Choose the POCO F8 Ultra if:
- You want flagship performance without flagship pricing.
- Gaming, speed, and daily use matter more than pro-level photography.
- Value-for-money is key—you get the same chipset, huge screen, and solid cameras for hundreds less.
In 2026, the POCO F8 Ultra wins for most people as the smarter buy—insane power at a mid-flagship price. But if budget allows and you live for photography, the Xiaomi 17 Ultra is the superior all-rounder and the one that pushes boundaries further.
Both are excellent; your choice depends on whether you prioritize savings or ultimate camera prowess.
You can read our review of the POCO F8 Ultra and video review at the links below :