I25 Ultra Unlocked Smartphone 16+512GB - Large Battery & S Pen

In this review the I25 Ultra Unlocked Smartphone is considered for users who want a large-screen Android handset with long battery life and pen input without carrier locking. The single biggest reason to buy is the combination of a 6.99 in HD+ display, a built-in 4096-pressure S Pen and a 7000mAh battery that together make the phone useful for long work sessions, media consumption and note taking. The review looks at camera, performance, battery and versatility for everyday and travel use.

Key Features

• 6.99 in HD+ Display: A 14403040 resolution panel gives a roomy canvas for reading, videos and sketching with the included pen.
• 7000mAh Battery: A large capacity battery provides extended runtime so the phone can handle a full day of heavy use without frequent recharging.
• Snapdragon 8 Gen3 CPU with 16GB: A 12-core chipset with 16GB RAM and 512GB storage keeps apps and games responsive and supports heavy multitasking.
• Pro-Grade S Pen Included: The 4096-pressure S Pen with magnetic attachment enables precise note taking, photo edits and drawing without buying an accessory separately.
• 108MP Main and 68MP Front Cameras: High-resolution rear and front sensors improve detail for photos and selfies compared with typical midrange phones.
• Dual SIM and Global 5G Bands: Two 5G SIM support plus a third slot for expandable storage lets you use a local SIM and a primary line while traveling.

Who It's For

The I25 Ultra is well suited to power users who want a large display and long battery life for media, gaming and productivity, and to anyone who values pen input for handwritten notes or photo edits. Travelers and dual-line professionals will appreciate the dual SIM plus expandable storage option.

It is less appropriate for buyers who need the smallest pocketable handset, those who require the latest flagship camera tuning from top camera brands, or people who want a compact phone exclusively optimized for one-handed use.

Pros & Cons

Pros

• Very long battery life from the 7000mAh cell keeps the phone running through heavy days.
• Included S Pen with 4096 pressure levels is a productivity advantage for note takers and artists.
• Strong memory and storage combination (16GB+512GB) supports multitasking and large media libraries.
• High-resolution 108MP rear and 68MP front cameras capture detailed photos and selfies.

Cons

• The large 6.99 in display makes the device less convenient for one-handed use and pocket carry.
• Software polish and camera tuning are not described, so imaging results may vary compared with premium flagships.

Specifications

Display	6.99 in HD+ 14403040
Operating System	Android 14.0
Processor	Snapdragon 8 Gen3 12-core
Memory & Storage	16GB RAM, 512GB internal, expandable via card
Battery	7000mAh
Cameras	108MP main, 68MP front
Connectivity	Dual SIM, 5G, GPS, Face ID, Fingerprint

Our Verdict

The I25 Ultra is a compelling choice for users who prioritize battery life, a large display and the convenience of a built-in S Pen, delivering strong multitasking ability with 16GB RAM and expansive 512GB storage. It offers good value for people who need a productivity-focused unlocked phone and frequent travelers who use dual SIMs, though buyers seeking the smallest or most camera-optimized handset may want to compare alternatives first.

Frequently Asked Questions

Does the phone support two active SIMs?
Yes, the I25 Ultra uses a 2+1 card slot design that supports two 5G SIMs and a separate card for storage.

Is the S Pen included and how precise is it?
The package includes a pro-grade S Pen with 4096 pressure levels and magnetic attachment for convenience.

How long does the battery last in daily use?
The 7000mAh battery is designed for extended use and typically supports a full day of heavy media, gaming or productivity tasks.