The Samsung Galaxy S25 Ultra 512GB 12GB is now in stock at Mascom International for KSh 113,000, available at our Old Mutual Building store on Kimathi Street in Nairobi CBD. This unit pairs a 6.9-inch Dynamic AMOLED 2X screen with the Snapdragon 8 Elite for Galaxy chipset, 12GB of RAM, and 512GB of UFS 4.0 storage. A 200MP main camera, 5000mAh battery, and bundled S Pen round out the hardware. The Samsung Galaxy S25 Ultra 512GB reaches Mascom International as a carefully maintained international import, never deployed locally in Kenya, in clean used condition.
This used Samsung Galaxy S25 Ultra 512GB suits Kenya's business executives, content creators, and field professionals who want top-tier Android hardware without paying full new-unit pricing. Photographers shooting weddings in Karen and corporate work across Westlands get a 200MP sensor with 5x optical zoom in one device. The S Pen handles signed approvals and quick notes between client meetings in Upper Hill chambers. Heavy multitaskers running the M-PESA app, banking apps, and video calls at once lean on the 12GB of RAM. For buyers priced out of a brand-new Ultra, this maintained import closes the gap at KSh 113,000.
Unlike other electronics retailers in Kenya that quietly pass reconditioned stock off as "used," Mascom International states condition plainly: this Galaxy S25 Ultra carries original hardware, light prior international handling, and no local deployment. Buyers across Nairobi tell us the 6.9-inch screen and Snapdragon 8 Elite still outpace most phones on shelves today. At Mascom International, we're seeing steady demand for clean Ultra imports as the S25 generation matures and pricing softens. Visit our Nairobi CBD store to test the Samsung Galaxy S25 Ultra 512GB before purchase, or order for pay-on-arrival delivery to any of Kenya's 47 counties.
Common Questions About the Samsung Galaxy S25 Ultra 512GB
Is the Samsung Galaxy S25 Ultra 512GB worth KSh 113,000 in Kenya's used market?
Yes, for buyers who want Ultra-tier hardware below new-unit pricing. A brand-new S25 Ultra retails far higher across Kenyan stores, so this clean import saves real money. You get the same Snapdragon 8 Elite chip, 200MP camera, and S Pen found in sealed units. The trade-off is light prior international use rather than factory-fresh condition. For executives and creators watching budgets, that gap of tens of thousands of shillings often makes the used route the sensible buy.
What is the difference between used and refurbished on this Galaxy S25 Ultra?
This Galaxy S25 Ultra is used, not refurbished, and Mascom International keeps that distinction clear. Used means original factory hardware with light prior international handling and no part swaps or reconditioning. Refurbished means a unit was opened and had components like the battery or screen replaced before resale. This phone was carefully maintained abroad and never deployed locally in Kenya. We never label reconditioned stock as used, so you know exactly what reaches your hands.
How good is the Samsung Galaxy S25 Ultra 512GB camera for photography?
The 200MP main sensor produces sharp, detailed shots suited to wedding and corporate photography across Nairobi. A 50MP 5x periscope telephoto pulls distant subjects close without quality loss, while a 10MP 3x lens covers mid-range zoom. The 50MP ultrawide adds wide group shots and landscape framing. Night photography holds up through the larger sensor and Galaxy AI processing. Content creators shooting product reels and event coverage get usable 8K video too.
Does the Samsung Galaxy S25 Ultra 512GB support Safaricom 5G?
Yes, the Galaxy S25 Ultra runs 5G across Safaricom's expanding Nairobi, Mombasa, Kisumu, and Nakuru coverage. It also works on Airtel Kenya and Telkom Kenya 4G and 5G bands. Dual SIM support holds a Safaricom personal line and an Airtel business line at once, with eSIM as a second option. Wi-Fi 7 keeps downloads quick on office and home networks. Streaming, video calls, and large file transfers stay fast wherever coverage reaches.
How long does the Samsung Galaxy S25 Ultra 512GB battery last?
The 5000mAh battery comfortably covers a full Westlands-to-Karen-and-back workday for most users. Mixed use of calls, M-PESA, social apps, and browsing typically clears a day on a single charge. Heavy camera, gaming, or hotspot sessions will need a top-up by evening. Wired charging hits 45W, refilling a meaningful chunk inside 30 minutes with a compatible adapter. Qi2 wireless charging adds desk-side convenience for office workers across Upper Hill and Kilimani.
Does the used Galaxy S25 Ultra still get software updates?
Yes, software support follows the device, not the seller, so this used Galaxy S25 Ultra keeps its full update window. Samsung committed to seven years of major Android upgrades and security patches from the S25 generation. That means feature drops and protection continue for years beyond your purchase date. The phone ships on One UI 7 over Android 15. You receive the same Galaxy AI tools and Knox security found on sealed units.
What does the S Pen do on the Galaxy S25 Ultra?
The bundled S Pen handles handwritten notes, document signing, and precise on-screen markup. Lawyers, doctors, and executives use it to sign approvals and annotate files between meetings. It slots into the body, so there is no separate case to carry. Note that this generation drops the Bluetooth S Pen, meaning no air gestures or remote camera shutter. Core writing, drawing, and navigation features all work fully and need no charging or pairing.
How does the Samsung Galaxy S25 Ultra 512GB compare to the S24 Ultra?
The S25 Ultra steps up with the Snapdragon 8 Elite chip, a slightly larger 6.9-inch screen, and a new 50MP ultrawide camera. Thinner bezels and rounded corners make it easier to hold during long matatu commutes. Day-to-day speed and Galaxy AI features improve over the S24 Ultra, though the 200MP main camera and 5000mAh battery carry over. For most buyers, the chip and ultrawide upgrade justify choosing the S25 Ultra at this price.
Is the Galaxy S25 Ultra fast enough for gaming and multitasking?
Yes, the Snapdragon 8 Elite for Galaxy ranks among the quickest mobile chips available today. Demanding titles like Genshin Impact run at high settings with steady frame rates. The Adreno 830 graphics handle console-style games without stutter on the 120Hz screen. With 12GB of RAM, you can keep dozens of tabs, chat apps, and banking sessions open at once. Software developers and mobile gamers across Kilimani and Lavington get headroom that lasts years.
Technical Specifications
Display and Screen Technology
- 6.9-inch Dynamic AMOLED 2X panel renders rich color for video and document work on the move
- 120Hz adaptive refresh rate keeps scrolling smooth through WhatsApp, X, and TikTok feeds
- QHD+ 1440 x 3120 resolution at 498ppi sharpens text for reading contracts and long emails
- 2600 nits peak brightness stays readable under direct Nairobi and Mombasa midday sun
- Corning Gorilla Armor 2 glass resists scratches and cuts glare during outdoor use
- 19.5:9 aspect ratio and slim bezels fit a large screen into a manageable footprint
- •Ultrasonic under-display fingerprint reader unlocks quickly even with slightly damp fingers
Processor and Real-World Speed
- Snapdragon 8 Elite for Galaxy uses a 3nm build for strong speed with lower heat
- Two Oryon prime cores reach 4.47GHz for quick app launches and heavy workloads
- Six performance cores at 3.53GHz handle background tasks and split-screen multitasking
- Adreno 830 graphics drive demanding 3D games at steady frame rates on the 120Hz panel
- Galaxy AI features run partly on-device for faster, more private text and photo tools
- Sustained load throttles like most 2025 phones but holds steady through normal daily use
Memory and Storage Configuration
- 12GB of LPDDR5X RAM keeps banking apps, browsers, and chats open without reloading
- 512GB of UFS 4.0 storage holds thousands of photos, 8K clips, and offline files
- Fast UFS 4.0 read and write speeds cut app install and large file transfer times
- No microSD slot, so the fixed 512GB suits creators who shoot heavy video locally
- Combined storage and memory pairing supports years of use before space runs tight
- On-device Galaxy AI and DeX desktop mode both lean on this memory headroom
Camera Hardware and Imaging
- 200MP main sensor captures detailed stills for wedding, event, and product photography
- 50MP 5x periscope telephoto pulls distant subjects close with clean optical zoom
- 10MP 3x telephoto covers portrait and mid-range framing without digital crop loss
- 50MP ultrawide with autofocus widens group shots, landscapes, and tight indoor scenes
- 12MP front camera handles video calls and selfies for content and meetings
- 8K video recording suits creators producing high-resolution reels and client footage
- Galaxy AI editing tools clean backgrounds and sharpen low-light shots after capture
Battery and Charging
- 5000mAh battery clears a typical workday of calls, M-PESA, and social use
- 45W wired charging refills a large portion of the cell within about 30 minutes
- Qi2 wireless charging adds cable-free top-ups at the office desk or home
- Reverse wireless charging tops up earbuds and watches directly from the phone
- Adaptive power tools stretch runtime during long days away from a socket
- No charger ships in the box, in line with Samsung policy since 2021
Connectivity and Network Support
- 5G works on Safaricom, Airtel Kenya, and Telkom Kenya for fast mobile data
- Dual SIM with nano-SIM plus eSIM runs personal and business lines together
- Wi-Fi 7 speeds large downloads and video calls on office and home networks
- Bluetooth 5.4 pairs earbuds, watches, and car systems with low audio lag
- NFC supports tap-to-pay through Visa contactless and Mastercard terminals in Kenya
- Ultra Wideband and Samsung DeX add precise device finding and a desktop workflow
Package Contents
This used Samsung Galaxy S25 Ultra 512GB ships in clean used condition with the handset, a compatible USB-C to USB-C cable, and a SIM ejector tool. As an international import, it may not include the original Samsung retail box or printed documentation. No power adapter is included, matching Samsung's standard policy. Compatible 25W and 45W Samsung Super Fast chargers are available separately at Mascom International we recommend the 45W adapter for full wired charging speed.
Warranty
This Samsung Galaxy S25 Ultra 512GB is a carefully maintained international import, never deployed locally in Kenya before reaching our store. Mascom International provides a 6-month warranty covering hardware functionality on this used unit. Our Nairobi CBD service desk handles any warranty claims directly, so you deal with a local team rather than an overseas seller.
Where to Buy the Samsung Galaxy S25 Ultra 512GB in Kenya
The Samsung Galaxy S25 Ultra 512GB is available now at Mascom International, located at Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD. Visit our store Monday through Saturday, 9:00 AM to 7:00 PM, to test the Samsung Galaxy S25 Ultra 512GB in person before purchase. Available colors subject to current stock: Titanium Black, Titanium Gray, Titanium Silverblue, and Titanium Whitesilver.
Order through any of the following:
- Phone: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
Mascom International ships the Samsung Galaxy S25 Ultra 512GB across all 47 Kenyan counties with pay-on-arrival delivery you pay only when the phone reaches you. Nairobi and its environs receive same-day delivery, while Mombasa, Kisumu, Nakuru, and Eldoret get their unit within 1 business day. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days.
This Samsung Galaxy S25 Ultra 512GB is backed by Mascom International's 6-month warranty covering hardware functionality, with after-sales support handled at our Nairobi CBD service desk. Buyers across Kenya rely on Mascom International for honest condition reporting, current market pricing, and dependable warranty backing on every used smartphone we stock.
