itel S25 Ultra Buyer’s Guide (2025): Price, Specs & Mistakes to Avoid

The itel S25 Ultra isn’t just another budget phone—it’s a bold step forward in itel’s attempt to redefine affordable smartphones. With a sleek AMOLED display, under-display fingerprint sensor, and a surprisingly capable chipset, it targets users who want flagship-style features without breaking the bank.

This model is part of the S25 lineup but takes things up a notch with performance upgrades and an ultra-slim design. If you’ve ever been frustrated by laggy budget devices, poor camera performance, or outdated software, the itel S25 Ultra addresses those pain points directly.

Itel S25 Ultra Full Review

Table of Contents

Key Highlights at a Glance

  • 6.78-inch FHD+ AMOLED display with 120Hz refresh rate
  • Under-display fingerprint sensor – sleek and secure
  • Dual rear cameras with advanced AI processing
  • Android 14 with promise of two major OS upgrades
  • Unisoc T620 chipset + 8GB RAM for smooth multitasking

This isn’t about hype—it’s about real value. The S25 Ultra is for people who want their phone to work now, look great, and age well over the next 2–3 years.

itel S25 Ultra Price and Availability

The itel S25 Ultra has officially launched in select African and Asian markets, with Nigeria, Kenya, and Ghana getting early access through major online and retail channels.

Current Pricing (June 2025)

  • Nigeria: ₦215,000 – ₦235,000
  • Ghana: GH₵ 2,300 – GH₵ 2,600
  • Kenya: KSh 28,000 – KSh 31,000

Where to Buy

  • Online: Jumia, Slot.ng, Konga
  • Offline: Pointek, 3CHub, Finet, EasyBuy (for installment payments)

Expert Tip:

Always compare prices across platforms. For example, Jumia often runs limited-time flash deals, while Slot might bundle accessories. Look out for genuine sealed units with a full 12-month manufacturer warranty.

Common Mistakes to Avoid

  • Buying “London used” versions with downgraded firmware or poor battery life
  • Skipping warranty coverage—especially for a brand-new chipset

itel S25 Ultra Full Specifications

itel didn’t cut corners with the S25 Ultra. From the 120Hz display to the large 8GB RAM and massive storage options, this phone has the kind of hardware we rarely see under ₦250K.

General Specifications

  • OS: Android 14 (itel OS 14.5, upgradable to Android 16)
  • Chipset: Unisoc T620 (2×2.2 GHz Cortex-A75 + 6×1.8 GHz Cortex-A55)
  • GPU: Mali-G57 MP1
  • RAM: 8GB
  • Storage: 128GB / 256GB / 512GB (no microSD slot)
  • Build: Slim 6.9mm profile, ~163g weight
  • SIM: Dual Nano-SIM

Colors Available

  • Bromo Black
  • Meteor Titanium
  • Komodo Ocean

For the price, these specs put the S25 Ultra well above most entry-level phones. No lag, no cheap plastic feel—this thing looks and performs like a mid-range device.

Display: A Stunning AMOLED You Can Actually Afford

itel pulled off something bold: putting a 6.78″ AMOLED panel on a budget device. Not just AMOLED—but one with flagship-level brightness, deep blacks, and 120Hz refresh rate. This phone is made for binge-watching, scrolling TikTok, or gaming under bright sunlight.

Display Features

  • Size: 6.78 inches
  • Type: AMOLED, FHD+ (1080 x 2436 pixels)
  • Refresh Rate: 120Hz
  • Touch Sampling Rate: 1500Hz
  • Brightness: 1000 nits HBM, 1400 nits peak
  • Protection: Corning Gorilla Glass 7i

Real-World Use

Whether you’re outside during the day or lying in bed at night, the S25 Ultra’s screen adjusts beautifully. AMOLED means vibrant colors, deep contrast, and lower power usage. It feels responsive, smooth, and immersive—even while multitasking or gaming.

Pro Tip:

Avoid low-quality screen protectors that dull the display. Invest in tempered glass made for AMOLED panels so you don’t lose brightness and clarity.

Performance: Handles More Than You’d Expect

Don’t let the itel badge fool you—the S25 Ultra actually brings impressive real-world performance. Powered by the Unisoc T620, it’s one of the smoothest itel phones ever made. Whether you’re switching apps, watching HD videos, or gaming, it keeps up without stuttering.

Key Performance Specs

  • Chipset: Unisoc T620 (12nm, 2.2GHz Octa-core)
  • RAM: 8GB (plus up to 8GB virtual RAM)
  • Internal Storage: 128GB / 256GB / 512GB (UFS 2.2)
  • GPU: Mali-G57 MP1 for basic gaming

What You Can Expect

  • Everyday tasks: Smooth multitasking, fast app opening
  • Gaming: Handles Call of Duty Mobile, PUBG, and Asphalt 9 on medium settings
  • Productivity: Good with document editing, emails, and Zoom calls

Expert Insight

The T620 isn’t a flagship chip, but it’s extremely efficient and thermally stable. It doesn’t overheat like some Snapdragon 680-powered phones in this price range. Just don’t expect Genshin Impact at high settings—keep it moderate for smooth gameplay.

Software and User Experience

Out of the box, the S25 Ultra runs Android 14 with itel’s updated OS skin—now cleaner, faster, and closer to stock Android. You get smoother animations, fewer pre-installed apps, and a more intuitive UI than previous itel phones.

Software Features

  • OS: Android 14 (itel OS 14.5)
  • Upgrade Promise: 2 major OS updates + 3 years of security patches
  • UI improvements: One-hand mode, gesture navigation, game assistant
  • Security: Under-display fingerprint + face unlock

Real-World Benefits

  • Less Bloatware: Only 5-6 uninstallable system apps
  • Battery Management: Smart AI battery optimization settings included
  • Privacy: App lock, permission manager, clipboard privacy alerts

Pro Tip:

Disable unnecessary animations in Developer Options to make things feel even faster, especially if you plan to keep the device for 2+ years.

Battery Life and Charging

This phone is a low-key beast when it comes to power. With a 5000mAh battery and efficient chip, you can squeeze nearly two days of use. Plus, 45W fast charging means you’re not tethered to a wall socket all day.

Battery Details

  • Capacity: 5000mAh (non-removable)
  • Charger Included: 45W USB-C fast charger
  • Charging Time: 0% to 70% in ~30 minutes
  • Endurance: Up to 9 hours of video playback or 34 hours of talk time

Real Usage Breakdown

  • Heavy users: One full day with social media, YouTube, and gaming
  • Light users: Easily lasts 2 days between charges

Tips to Maximize Battery Life

  • Use Dark Mode to save power on AMOLED
  • Turn off background app refresh for apps you don’t use often
  • Enable AI power saving when battery is under 20%

Network and Connectivity

itel S25 Ultra is future-ready with full 4G LTE bands, VoLTE support, and Wi-Fi calling. It nails all the basics you’d expect from a modern smartphone and goes the extra mile with features like USB Type-C and dual-band Wi-Fi.

Connectivity Features

  • SIM: Dual Nano-SIM (dual standby)
  • Network: GSM / HSPA / LTE
  • VoLTE: Supported
  • Wi-Fi: Dual-band (2.4GHz & 5GHz)
  • Bluetooth: v5.0
  • USB: USB Type-C 2.0, OTG support
  • GPS: A-GPS, GLONASS

What’s Missing?

No 5G on this model—but given the price and target market, 4G is still the most widely supported option in countries like Nigeria and Kenya. Also, there’s no NFC for mobile payments.

Pro Insight:

If you’re using dual SIMs, disable 4G on one when not in use to improve battery life and stability on the primary network.

Audio and Multimedia

itel added a nice touch here—dual stereo speakers. It makes a real difference when streaming, playing music, or taking calls on speaker. Plus, the 3.5mm headphone jack is still alive, which is perfect for wired audio lovers.

Sound Features

  • Speakers: Dual stereo with DTS enhancement
  • Audio Jack: 3.5mm supported
  • FM Radio: Yes (with wired earphones)

Media Playback

  • Supported Formats: MP4, MKV, MP3, AAC, FLAC
  • Streaming: Full HD playback supported on YouTube, Netflix, and TikTok

Expert Note:

For best audio experience, tweak the equalizer under DTS sound settings. It’s especially useful if you’re using good-quality wired earphones or a Bluetooth speaker.

Camera Quality: Surprisingly Sharp for the Price

The itel S25 Ultra doesn’t just check the “camera phone” box—it delivers images that are social-media ready straight out of the camera app. For a phone under ₦150k, its camera setup is one of the strongest in its class, especially in daylight and portrait modes.

Main Camera Setup

  • Rear Cameras: Dual 50MP AI camera system
  • Front Camera: 8MP selfie with screen flash
  • Video Recording: 1080p @30fps (front and rear)

Photo Performance

During daylight, the main 50MP sensor captures impressive detail, with vibrant colors and minimal noise. The AI scene detection adjusts for lighting automatically, giving decent dynamic range. Portrait mode also does a decent job with edge detection—good for social content and LinkedIn headshots.

Low Light Tips

  • Use “Night Mode” for clearer low-light shots (less grain)
  • Hold still for 2–3 seconds after tapping shutter—exposure improves
  • Avoid digital zoom at night—it loses clarity fast

Expert Advice

If you want better quality selfies, turn on “beauty mode” sparingly—set it to level 1 or 2 to avoid over-smoothing. Also, try using Google Camera (GCam mod) for better HDR shots—yes, it’s compatible!

Storage and Expandability

Whether you’re a heavy app user, movie downloader, or just want peace of mind, the itel S25 Ultra delivers flexible storage that scales with your needs. It comes in three internal variants and supports expansion—without compromising performance.

Storage Specs

  • Internal Options: 128GB, 256GB, 512GB (UFS 2.2)
  • Expandable: Yes, up to 1TB via microSD (dedicated slot)

Real-World Use Case

  • 128GB Model: Enough for casual users with light app usage
  • 256GB: Ideal for gamers, social media content hoarders, or vloggers
  • 512GB: Great for offline movie storage, big app users, or backup phone

Tips to Manage Storage

  • Use Files by Google to auto-clear junk & duplicates weekly
  • Move large apps to microSD (where supported)
  • Enable auto-backup to Google Drive for photos & WhatsApp

Don’t fill storage above 90%—it affects app speed and causes lag. Keep at least 10–15GB free.

Gaming Experience

The itel S25 Ultra isn’t built as a gaming phone—but it handles casual and even some competitive games better than you’d expect for the price. Thanks to the Unisoc T620 and Mali-G57 GPU, it supports games like PUBG Mobile, Mobile Legends, and Asphalt 9 at moderate settings with smooth frame rates.

Tested Games and Performance

  • Call of Duty Mobile: Medium graphics, steady 30fps
  • PUBG Mobile: Balanced graphics + medium frame rate—no lags
  • Asphalt 9: Playable, minor drops during heavy effects
  • Subway Surfers, Candy Crush: Flawless

Gaming Features

  • Game Assistant: In-game popup tools (block calls, monitor CPU)
  • Heat Management: Minimal overheating even during long play sessions

Pro Tips for Gamers

  • Clear background apps before starting heavy games
  • Turn on “Performance Mode” in battery settings
  • Use Game Mode’s “Do Not Disturb” to avoid distractions

For a phone under ₦150,000, it’s easily one of the best gaming experiences you’ll find in this tier—stable, smooth, and good enough for casual esports fun.

Security and Unlocking

itel stepped up its game here. The S25 Ultra doesn’t just give you standard options—it includes fast unlocking and smart security features that feel like they belong on a more expensive phone.

Unlocking Options

  • Fingerprint Sensor: Under-display (optical), quick and accurate
  • Face Unlock: Works well even in low light (uses screen flash)
  • PIN, Pattern, Password: All standard Android options supported

Security Tools

  • App Lock: Lock specific apps with fingerprint or PIN
  • Privacy Dashboard: Track apps using camera, mic, and location
  • Auto-Reset Permissions: For apps not used in 30+ days

Helpful Tips

  • Set different fingerprints for each hand (for quicker access in all positions)
  • Use face unlock with caution—it’s convenient, but less secure than fingerprint
  • Check Privacy Dashboard weekly to spot sneaky apps draining your data

Security here feels smooth, fast, and built into daily use—no need to dig through settings endlessly.

User Feedback and Real-Life Experience

Across online reviews and offline users in Nigeria, Kenya, and India, the S25 Ultra is being praised for what it is—a budget phone that punches way above its weight.

Common Praise

  • “The 90Hz display makes scrolling feel like a flagship.”
  • “Battery life is shockingly good. Almost 2 days for me.”
  • “I’m using the 256GB model—it handles my work and entertainment needs easily.”

Common Complaints

  • No 5G support (expected at this price)
  • Camera struggles a bit at night
  • itel UI can still improve in fluidity

Expert Verdict

If you’re moving from older itel models (like Vision 3 or A58), this is a huge leap. Even compared to entry-level Xiaomi or Infinix, the S25 Ultra gives you better RAM and faster charging at a lower price point.

Software and Smart Features

The itel S25 Ultra ships with Android 13 (Go Edition), paired with itel’s lightweight skin. While it’s not as flashy as MIUI or HiOS, it gets the job done—smooth transitions, essential pre-installed apps, and just enough customization for the average user.

Key Software Features

  • Smart Panel: Swipe from the side to access shortcuts like screenshot, screen recording, and calculator.
  • Social Turbo: Tools like WhatsApp call recorder, status saver, and message filter—no third-party apps needed.
  • AI Gallery: Smart organization of photos by faces, locations, and tags.

Performance Optimizations

  • Lite apps (YouTube Go, Gmail Go) save space and load faster
  • App freezer lets you disable background apps without uninstalling
  • Gesture navigation feels fluid with the 90Hz refresh rate

Expert Tips

  • Turn off unnecessary startup apps via Settings > Apps > Autostart
  • Use “Ultra Power Saving Mode” during travel or emergencies
  • Uninstall bloatware early to free RAM and internal storage

In day-to-day use, the software feels clean and uncluttered. You won’t get Pixel-like polish, but you get reliability—and that’s what counts in this price range.

Audio and Media Experience

For a budget phone, the itel S25 Ultra delivers a surprisingly decent media experience. While it won’t beat stereo phones like the Redmi Note 12, it still gives you loud, clear audio with good bass for solo listening and YouTube binging.

Audio Setup

  • Speaker: Single bottom-firing loudspeaker
  • 3.5mm Jack: Yes, present
  • Bluetooth: v5.0, stable connection with earbuds and car audio

Sound Quality Verdict

The single speaker is clear and doesn’t distort even at 80–90% volume. However, it lacks depth—use headphones or a Bluetooth speaker for a fuller experience.

Streaming Experience

  • Streams YouTube and Netflix in HD (720p max due to screen)
  • Good color contrast and viewing angles for mobile movie sessions
  • Google Play Music alternatives like Boomplay and VLC work seamlessly

Pro Tip

For best music experience, install Wavelet (from Play Store) and fine-tune your earphones’ EQ. It makes even cheap ₦5k earphones sound premium.

Battery Life and Charging

Now we’re talking power. The itel S25 Ultra packs a 5000mAh battery that can handle just about anything you throw at it—calls, Instagram, YouTube, light gaming. It doesn’t just last the whole day—it stretches into Day 2.

Battery Performance

  • Up to 7 hours of screen time with mixed use
  • 2 days standby with moderate use
  • Zero overheating during long calls or browsing

Charging Details

  • Fast Charging: 18W wired
  • USB Type-C: Yes (finally, itel!)
  • Full charge: 0% to 100% in ~2 hours

Real-World Tips

  • Use the original charger—it’s optimized for the battery
  • Enable Battery Saver at 20% for extended use
  • Don’t leave your phone charging overnight too often—it affects battery health long-term

Bottom line: you won’t have battery anxiety with this phone. It’s one of the best power performers under ₦150k.

Network and Connectivity

While the S25 Ultra skips 5G, it nails every other connectivity essential—fast 4G, smooth hotspot, strong GPS, and reliable Wi-Fi connections. For the average Nigerian or Kenyan user, this phone delivers what matters most.

Connectivity Specs

  • SIM: Dual nano SIM (4G supported on both)
  • Wi-Fi: 802.11 b/g/n, hotspot supported
  • Bluetooth: v5.0
  • GPS: Yes, works well with Google Maps

Call and Internet Performance

  • Clear voice calls with no drop-offs on MTN, Airtel, and Glo
  • Hotspot supports up to 8 devices simultaneously
  • 4G downloads average 3–8MB/s in urban zones

Common Mistakes to Avoid

  • Don’t block the bottom mic with your hand during calls—it reduces clarity
  • Use SIM 1 for data—it gets better speeds on some networks (like MTN Nigeria)

While there’s no 5G here, the 4G performance is steady and dependable for everyday needs—whether you’re uploading TikToks, attending Zoom classes, or checking football scores on live apps.

Who Should Buy the itel S25 Ultra?

This phone isn’t for everyone—but if you’re after insane value on a budget, it might just be the best pick under ₦150k right now.

Best For:

  • Students who need a reliable phone for classes, notes, social media, and light gaming
  • Small business owners who want a second device for WhatsApp Business or product photos
  • Anyone upgrading from older itel or Tecno devices like A58, Spark 7, or Camon 12

Not Ideal For:

  • Gamers who need 5G and high frame rates (look at the Infinix Zero 30 5G instead)
  • Camera junkies who shoot a lot at night
  • Users who want guaranteed OS upgrades beyond Android 13

But for everyone else? This is the ultimate budget beast. Big storage. Fast charging. Sharp display. itel finally delivered.

Frequently Asked Questions (FAQs)

Is the itel S25 Ultra good for gaming?

It handles light to medium games like Free Fire, Subway Surfers, and Dream League smoothly. However, don’t expect buttery-smooth gameplay on titles like PUBG or Call of Duty Mobile. The 90Hz screen helps, but the processor and GPU aren’t built for high-end gaming.

Can I expand the storage?

Yes, you can. The itel S25 Ultra supports a dedicated microSD card slot (up to 1TB), so you can expand storage without sacrificing your second SIM slot.

Does the S25 Ultra support 5G?

No, it doesn’t. You’ll have to stick to 4G LTE. That said, its 4G speeds are reliable enough for streaming, video calls, and social apps.

Does it come with a fingerprint sensor?

Yes, it has a rear-mounted fingerprint scanner. It’s fast and accurate enough for daily use, and you also get Face Unlock if that’s your thing.

How long will the itel S25 Ultra last?

With proper care, this device should last you 2–3 years. Avoid overcharging, update software regularly, and use a protective case to increase its lifespan.

itel S25 Ultra vs Competitors

Featureitel S25 UltraInfinix Smart 8Samsung A04e
Display6.6″ HD+ IPS, 90Hz6.6″ HD+ IPS, 90Hz6.5″ PLS LCD, 60Hz
ProcessorOcta-core Unisoc T606Octa-core Unisoc T606Octa-core Helio P35
Storage128GB / 256GB64GB / 128GB32GB / 64GB
Camera50MP Dual AI13MP Dual AI13MP Rear
Battery5000mAh, 18W5000mAh, 10W5000mAh, 10W
Price₦99,000 – ₦125,000₦90,000 – ₦110,000₦95,000 – ₦115,000

Verdict: For under ₦125K, the itel S25 Ultra outclasses both in storage, display refresh rate, and camera clarity.

Where to Buy the itel S25 Ultra in Nigeria and Kenya

You can buy the itel S25 Ultra both online and offline across major tech markets in Nigeria and Kenya.

Trusted Online Stores

Offline Retail Locations

  • Slot Nigeria
  • 3CHub stores nationwide
  • Computer Village, Ikeja
  • City Plaza, Nairobi

Before buying, compare prices and make sure it comes with a 1-year itel warranty. Always buy from official partners or certified retailers to avoid counterfeits.

Final Verdict

If you’re looking for a dependable phone under ₦130K or Ksh 15,000, the itel S25 Ultra is 100% worth it. You’re getting:

  • Huge 128GB–256GB storage
  • Stunning 50MP camera with beauty AI
  • 5000mAh battery with USB-C and 18W fast charging
  • Clean Android 13 Go software with smart tools
  • Surprisingly fluid 90Hz display

It’s not a gaming beast or a flagship killer, but for students, side hustlers, and everyday folks? This is one of the smartest budget buys in 2025.

Pro Tip: Get a glass screen protector and silicone case on day one. Keeps your S25 Ultra looking fresh and resale-ready down the line.

Still thinking about it? Don’t. Grab it before prices go up again.

Oluremi is the founder and owner of Gizmosum.com, a platform dedicated to making technology simple and accessible. Passionate about how-to guides, phone accessories, and everyday digital tools, Oluremi creates content that helps readers discover smarter ways to use their devices and stay ahead of tech trends.
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