Galaxy S25 Ultra vs POCO F9 Ultra vs XIAOMI 17T Pro vs POCO F8 Ultra: The Slab Fight

Smartphones4 products

Quick verdict

Pick Your Poison, Oh Digital Nomad

The Galaxy S25 Ultra remains the reliable choice for those who value software polish. If you want raw battery capacity and gaming specs at a lower cost, the POCO F9 Ultra or F8 Ultra are the clear winners.

  • Our pickSamsung Galaxy S25 Ultra
  • Best valuePOCO F9 Ultra

Side by side

FeaturePhoto of Samsung Galaxy S25 UltraSamsung Galaxy S25 UltraPhoto of POCO F9 UltraPOCO F9 UltraPhoto of XIAOMI 17T ProXIAOMI 17T ProPhoto of POCO F8 UltraPOCO F8 Ultra
Price€849.00€849.00€853.00€903.00
ProcessorThe POCO F9 Ultra claims the newest silicon, though in reality, these are all overkill.Snapdragon 8 EliteSnapdragon 8 Elite Gen 5 (winner)MediaTek Dimensity 9500Snapdragon 8 Elite
Battery CapacityThe POCO F9 Ultra puts a literal brick of a battery inside its chassis.Not listed8050 mAh (winner)7000 mAh6500 mAh
Display Refresh Rate185Hz is marketing madness, but it sure sounds impressive on a spec sheet.120Hz185Hz (winner)144HzNot listed

Product by product

Samsung Galaxy S25 UltraOur pick

The polished flagship traditionalist

A refined, professional slab that does everything well. It is the safe bet for people who hate software bugs.

What We Liked 👍

  • Incredible 200MP camera system
  • Top-tier processor performance
  • Fantastic AMOLED display clarity

What Could Be Better 👎

  • Bulky and massive design
  • Expensive without current discounts

POCO F9 UltraBest value

The battery-obsessed gamer

This is essentially a power bank with a screen attached. It ignores subtlety for sheer endurance and refresh rates.

What We Liked 👍

  • Massive 8050 mAh battery
  • Insane 185Hz display refresh
  • Excellent raw hardware value

What Could Be Better 👎

  • Heavy in the pocket
  • Hyper OS can be polarizing

XIAOMI 17T Pro

Photography enthusiasts on a budget

The Leica branding tries to class up the joint. It is a solid middle ground between pure gaming phones and lifestyle devices.

What We Liked 👍

  • Leica-tuned telephoto zoom lens
  • Efficient MediaTek chipset
  • Very fast wired charging

What Could Be Better 👎

  • Charging brick not included
  • Occasional software stability gripes

POCO F8 Ultra

Hardcore mobile gamers

A performance-focused device that leans hard into gaming aesthetics. It runs fast, plays hard, and heats up accordingly.

What We Liked 👍

  • Powerful Snapdragon 8 Elite
  • Solid 512GB storage base
  • Tuned Bose audio speakers

What Could Be Better 👎

  • Prone to thermal throttling
  • Design feels purely utilitarian

More Pixels Does Not Mean More Fun

We are currently in a race to see who can fit the most ridiculous numbers onto a spec sheet. POCO is clearly winning this arms race with their 185Hz screen and massive batteries. It is great if you spend your life playing competitive shooters on a bus, but it is also a recipe for heavy, unwieldy bricks that make your wrist ache.

On the other hand, the Samsung S25 Ultra is the adult in the room. It does not try to sell you a 185Hz screen you probably cannot perceive, focusing instead on a camera setup that actually works for more than just marketing fluff. The Xiaomi 17T Pro tries to bridge this gap with Leica tech, which is a nice touch, assuming you enjoy the 'Leica look' more than raw gaming power.

When Reality Bites the Spec Sheet

Spec sheet says one thing, reality says another. While the POCO F9 Ultra boasts an 8050 mAh battery, you are still carrying around a small laptop in your trousers. The S25 Ultra is undeniably the most polished experience, but you pay a premium for the brand and the software maturity.

If you want the best camera, you know where to go. If you want the most battery for your money, follow the POCO path, but keep a cooling pad handy for those long sessions.

Choose Your Path Wisely

If you want a reliable, daily-driver flagship that won't give you a headache, go with the Samsung S25 Ultra. It is the most balanced of the bunch.

If you are a mobile gamer who views your phone as a portable console, the POCO F9 Ultra is the absolute monster you need to dominate the leaderboard.

  • Our pickSamsung Galaxy S25 Ultra
  • Best valuePOCO F9 Ultra

Prices on amazon.fr as of October 7, 2026. Prices may change.

Disclosure: We share affiliate links and can earn some money when you click on any of those.

  • Smartphone
  • Android
  • Performance
  • Flagship