Phones with Expandable Storage (UK 2026) – More Space for Photos, Apps & Videos

Reviewed for microSD support, internal storage, battery life, everyday performance & value – updated July 2026

🥇 Motorola Moto G77 5G – Best overall phone with expandable storage → Check price on Amazon UK
🥈 POCO M7 – Best long-battery phone for photos, videos and offline media → Check price on Amazon UK
🥉 Samsung Galaxy A17 5G – Best affordable 5G phone with long-term support and expandable storage → Check price on Amazon UK

👉 Scroll down to see full reviews and Amazon UK links

Introduction

This guide is for UK buyers who want plenty of space for photos, videos, music and offline content without paying top-end prices for built-in storage. Even in 2026, many premium phones drop microSD slots, yet cameras and streaming apps still create huge files. A microSD card can be far cheaper than bumping internal storage, but it’s not a cure-all. Internal memory is faster and houses most apps, while a card is best for media and documents. You can’t always move every Android app or game to a card – it depends on the phone, Android version and app design. Also, hybrid SIM/card trays mean you may have to choose between a second SIM and extra storage.

We’ve selected three current 2025–26 models sold new in the UK that offer good built-in space and microSD expansion. Each has a dedicated or hybrid slot and sensible card limits. In the reviews below we compare their internal RAM/storage, display, battery, performance and software support. We focus on UK availability and advise checking the exact UK model, seller and warranty on Amazon UK.

Whether you’re a traveller downloading films, a photographer storing RAW images, or a music fan building a library, expandable storage can help. But remember: always buy a quality SD card (look for UHS-I U1/U3 or V30/A1/A2 ratings) and back up important files. Our picks balance price, performance and storage flexibility so you get the best value for your needs.

What Makes a Great Phone with Expandable Storage in 2026

Sufficient internal storage: A fast, ample built-in drive (e.g. 128GB or 256GB) is still key for apps and system tasks. Internal storage is far quicker than any microSD card. Use it for apps and games. Reserve the microSD card for media, downloads and documents.

High microSD capacity: Check the official max card size – today’s phones may support 512GB, 1TB or even 2TB microSDXC. Remember, cards beyond 32GB are SDXC. Always buy a card that matches the phone’s speed class (U1, U3, V30) especially for 1080p/4K video or running apps.

Dedicated vs hybrid slot: A dedicated SD slot lets you use dual SIMs and a card simultaneously. A hybrid slot means the 2nd SIM slot doubles as the microSD slot. In a hybrid design you must choose between a second SIM and extra storage. Decide which you need most.

Card speed and reliability: A UHS-I card rated U1/U3 (V30/V60) and A1/A2 for app performance is ideal. Cheap or fake cards can be very unreliable, so stick to brands like Samsung, SanDisk, Kingston, Lexar, etc. Always format new cards in the phone and keep backups of important data – even “high capacity” SD cards can fail.

Media handling: The phone should allow saving photos/videos to the card and (if needed) letting streaming apps download to it. Many phones let your camera write directly to SD, but app behavior varies. Check if apps like Netflix or Spotify can use the card for downloads; often they default to internal storage.

Performance and display: A smooth UI, 90–120Hz display and good daylight visibility make everyday use nicer. All our picks have large screens (6.7″–6.9″) and either AMOLED or high-refresh LCD for crisp media playback. However, display quality and brightness can vary, so consider your preferences.

Battery life: Heavy storage use (like playing offline movies or recording video) drains power. Phones with large batteries (5,000mAh or more) and fast charging help you stay unplugged. Our selections include long-lasting cells (up to 7,000mAh) plus quick-charge support, ensuring media won’t kill your day.

Connectivity and updates: Check if you need 5G or are happy with 4G. The Samsung and Motorola picks offer 5G for future-proofing, while the POCO M7 is 4G-only (even if it runs faster Wi‑Fi). Also consider software support – some phones promise 4–6 years of Android updates and security patches, which matters if you keep your phone for many years.

1. Motorola Moto G77 5G – Best overall phone with expandable storage

The Moto G77 5G hits a great balance of features. It has a 6.78″ Extreme AMOLED 120Hz display for smooth scrolling, a large 5200mAh battery (with 30W turbo charging), and a capable MediaTek Dimensity 6400 chipset with 8GB RAM. In the UK it comes with 128GB internal storage, and (critically) a dedicated microSD slot supporting up to 2TB. That means you can use two SIMs (physical+eSIM) and a card at the same time. The camera setup (108MP main + 8MP ultrawide + 32MP selfie) is solid for photos and video, and Motorola’s near-stock Android 16 interface is clean.

Expandable storage is a highlight here: 128GB built-in plus up to 2TB on a card. Keep large photo or music libraries on a fast UHS-I card (at least U3 for 4K video). Remember apps should stay on internal memory for best speed. The G77’s battery easily lasts a full day even with heavy media use, and 30W charging gives quick top-ups. Unlike hybrid-slot rivals, using the SD card does not force you to drop a SIM, since Motorola offers eSIM support.

Why this pick: The Moto G77 5G is a well-rounded mid-range phone. It packs 5G, a crisp OLED screen and long battery life, yet still has a microSD slot for huge additional storage. It runs Android 16 with minimal bloat and should get a few OS updates. The 108MP camera and stereo speakers are extra perks.

✅ Pros:

• Large 6.78″ 120Hz AMOLED display and clean Android (stock-like experience).
• 128GB internal + up to 2TB microSD (dedicated slot, no SIM trade-off).
• Big 5200mAh battery with 30W fast charging for all-day use.

⛔ Cons:

• Mid-tier MediaTek CPU – won’t match flagship speed in heavy gaming, and lacks the highest IP water-resistance (just IP64 splash-protection).

Main standout feature: With 128GB built-in and a separate microSD slot (up to 2TB), the Moto G77 gives the most storage flexibility of any phone here. You get both a spacious internal drive and full expansion, so it’s ideal for media hoarders.

Who it’s best for: Buyers who want the latest features (5G, high refresh-rate OLED) in an affordable package and tons of media space. It’s perfect for people who shoot lots of 1080p/4K video, download Netflix shows, store thousands of photos, or keep big offline libraries – all while enjoying a smooth Moto experience.

Amazon UK Check: 👉 Check price on Amazon UK – The Moto G77 5G sits in the mid-priced segment (around £200–£250 at launch) and offers an excellent balance of performance and storage. Its built-in 128GB and support for up to 2TB microSD make it very versatile. UK buyers should confirm they select the correct UK model (e.g. 8GB RAM, 128GB storage) and check the seller’s warranty. Prices, stock levels and configurations on Amazon UK can change, so we recommend verifying the listing details (SIM/memory config, included charger, etc.) before buying.

2. POCO M7 – Best long-battery phone for photos, videos and offline media

The POCO M7 (2025) is all about battery life and affordability. It has an enormous 7000mAh battery (rated for 18W charging), which in real use easily lasts multiple days. The 6.9″ FHD+ display (144Hz LCD) is huge for watching videos or reading documents, and it’s topped by a simple plastic body. Internally, the M7 ships with either 6GB RAM/128GB or 8GB/256GB (UK models) and a modest Snapdragon 685 chip. Storage is expandable up to 2TB via microSD, but note this phone has a hybrid slot: you must choose between a second SIM and the microSD card.

In practice, the POCO M7 is a budget powerhouse for media. A 7000mAh cell means you can “watch videos all day and still have juice left”. Offline downloads (movies, music, games) are easily stored on a cheap microSDXC card, giving you terabytes of room. The 50MP main camera and 8MP selfie cam are modest – sufficient for snapshots, but not great in low light – and the UI (HyperOS/Android 15) is light. Performance is basic; expect occasional lag switching between apps. But for photo/video storage, PDF/text files or streaming downloads, there’s no shortage of space or battery.

Why this pick: The POCO M7 delivers monster battery life and storage capacity for the price. Its 7000mAh cell outclasses almost all competitors, and you can slap in up to a 2TB SD card. You’re essentially getting a “brickname” of a phone that lasts and holds tons of media, ideal for heavy offline use.

✅ Pros:

• Massive 7000mAh battery – runs for days on end under normal use. Great for travellers or long workdays.
• Huge 6.9″ display and 144Hz refresh – immersive for videos or reading.
• 128GB/256GB internal plus microSD (up to 2TB) – store thousands of songs, films, photos or study files.

⛔ Cons:

• Modest hardware – 4G-only, slower Snapdragon 685 CPU and a mediocre camera. In testing the camera app even crashed often, so don’t expect great low-light photos or fast performance.

Main standout feature: The POCO M7’s battery capacity is its star. Combined with ample storage expansion, it’s built for bingeing movies, music and games offline without the charger or cloud – a rare feature in 2026.

Who it’s best for: Users who prioritise endurance and storage space over speed or photography. If you need a phone that can last through travel, fieldwork or heavy offline media consumption (Netflix, YouTube offline, music libraries, large photo collections) without plugging in, the M7 excels. It’s especially good if you already have decent 4G coverage and don’t need 5G.

Amazon UK Check: 👉 Check price on Amazon UK – The POCO M7 is an entry-level phone (often under £200) that punches above its weight on battery and storage. UK buyers should verify the exact model (6+128GB vs 8+256GB) since these configs exist. Its hybrid SIM slot means adding an SD card will sacrifice a SIM, so ensure the configuration fits your needs. Also check whether a charger is included, as Xiaomi often sells them separately. Prices and stock on Amazon UK can vary; always confirm the seller and model number before buying.

Check our website: for more details about Xiaomi Poco M7

3. Samsung Galaxy A17 5G – Best affordable mainstream option with expandable storage

The Galaxy A17 5G is Samsung’s budget 5G phone with long-term support and a quality display. It has a 6.7″ Super AMOLED 90Hz screen, 6–8GB RAM and either 128GB or 256GB internal storage (UK model). Like the others, it supports up to 2TB microSDXC, but on a hybrid SIM slot – using a card means losing the second SIM. On the plus side, the A17 5G supports 5G networks, has a solid 5000mAh battery (15W/25W charging), and ships with Android 15 (One UI 8). Importantly, Samsung promises 6 years of OS/security updates, which is exceptional for longevity.

Camera-wise, it uses a triple setup: 50MP main (f/1.8, OIS) + 5MP ultrawide + 2MP macro, plus a 13MP selfie. In daylight the main camera takes decent 1080p video and photos. The Exynos 1330 chip is modest but handles everyday tasks smoothly.

Why this pick: The A17 5G offers 5G connectivity and Samsung’s reliability at a low price. Its bright AMOLED screen, expandable storage and long software support make it a practical choice. It’s not a powerhouse, but you get a familiar One UI interface and Samsung’s 6-year update pledge – ideal for budget buyers who keep phones a long time.

✅ Pros:

• 5G-capable with a vivid 6.7″ Super AMOLED 90Hz display. Good balance of performance and efficiency.
• 128GB base storage plus microSD up to 2TB. Useful for photos, videos and downloads.
• Samsung’s 6 years of OS/security updates – one of the best support commitments in any affordable phone.

⛔ Cons:

• Hybrid SIM tray (second slot is SIM/SD) – you can’t use two physical SIMs plus a microSD at once. Also, the cameras are only average (no telephoto; 50MP main with OIS but low-res ultrawide) and performance is basic.

Main standout feature: Long-term software support. Samsung guarantees 6 OS upgrades and 6 years of security patches, so this phone stays up-to-date for much longer than most budget models.

Who it’s best for: Shoppers who want a modern 5G phone from a trusted brand without breaking the bank. It’s suited to everyday tasks, media consumption and moderate gaming, while offering expandable storage. If you plan to keep a phone for several years, the A17 5G’s update policy and familiar One UI make it a sensible mainstream choice.

Amazon UK Check: 👉 Check price on Amazon UK – The Galaxy A17 5G is priced competitively (often around £200–£250) for 5G and Samsung’s warranty. Its microSD slot provides flexibility, but remember it’s hybrid. Always double-check the seller listing: confirm it’s the UK (or European) 5G model with correct RAM/storage configuration. Note whether a charger is included (Samsung often sells them separately). Prices and availability on Amazon UK change frequently, so verify the current price and seller ratings before purchasing.

Check our website: for more details about Samsung Galaxy A17

Comparison Table: Best phones with expandable storage (UK 2026)

Feature	Motorola Moto G77 5G	POCO M7	Samsung Galaxy A17 5G
Best for	Overall value (5G, OLED, storage)	Ultra-long battery/media	Budget 5G with updates
Built-in storage	128 GB	128 GB (also 256 GB model)	128 GB (256 GB model available)
RAM	8 GB	6 GB or 8 GB	4 GB/6 GB/8 GB (model-dependent)
Max microSD capacity	Up to 2 TB	Up to 2 TB	Up to 2 TB
Card slot type	Dedicated (SIM + eSIM + SD)	Hybrid (SIM or SD)	Hybrid (SIM or SD)
Dual-SIM limitation	Uses eSIM for 2nd SIM, so card doesn’t sacrifice SIM	Using SD requires sacrificing SIM2	Using SD requires sacrificing SIM2
4G / 5G	5G (Sub6)	4G only (LTE)	5G (Sub6)
Display size	6.78″	6.90″	6.70″
Display type	OLED (Extreme AMOLED), 120 Hz	IPS LCD (FHD+), 144 Hz	Super AMOLED, 90 Hz
Battery	5200 mAh	7000 mAh	5000 mAh
Charging	30 W fast charging	33 W fast charging	15 W / 25 W (Super Fast)
Camera	Triple: 108 MP main, 8 MP ultrawide, 32 MP selfie	Dual: 50 MP main, 8 MP selfie (no ultrawide)	Triple: 50 MP main (OIS), 5 MP ultrawide, 2 MP macro
Software support	Android 16 (likely ~3 OS updates)	Android 15 (HyperOS) (likely ~2 OS updates)	Android 15, promised 6 OS upgrades
Best storage strength	High built-in (128 GB) + separate SD slot (up to 2 TB)	Very large expandable storage + huge battery	Strong update policy and 5G with SD slot
Main limitation	Mid-range CPU (Dimensity 6400); no IP68 waterproof	No 5G; basic CPU/camera performance	Hybrid slot (if SD used, lose SIM); modest cameras
Typical UK buyer	Multimedia users wanting 5G & lots of space	Travellers/media lovers needing all-day battery	Budget-conscious buyers seeking 5G & longevity

Motorola Moto G77 5G → Check price on Amazon UK
POCO M7 → Check price on Amazon UK
Samsung Galaxy A17 5G → Check price on Amazon UK

What to Consider Before Buying a Phone with Expandable Storage

Storage balance: More internal storage is better (apps work fastest there). Think of microSD as extra space for photos, videos, music and downloads. You’ll generally still install apps on the phone’s built-in memory.

Card capacity: Confirm the phone’s maximum supported card (e.g. 256GB, 512GB, 1TB or 2TB). Use a microSDXC card for anything above 32GB. Buying a very large card (1–2TB) makes sense only if you truly fill it; 256–512GB cards often suffice for most users.

Slot type (dedicated vs hybrid): If the phone has a hybrid slot, one SIM slot doubles as the microSD slot. This means you either use two SIMs or one SIM+microSD, not both dual SIM and card simultaneously. Decide if you need two phone numbers or more storage.

Dual-SIM needs: If you rely on two physical SIMs (no eSIM), a hybrid slot forces a choice. Phones with dedicated slots (SIM+SIM+SD) let you use two SIMs and a microSD card at once. Check the exact UK model; sometimes an eSIM version removes a SIM slot.

Card speed: For photo/video storage, a Class 10 (U1) card is minimum. For 4K recording or faster media access, pick U3 (V30) cards. If you intend to move some apps/games to SD (limited on some Android versions), look for A1/A2-rated cards for better random-access speeds. Brands like SanDisk, Samsung, Lexar or Kingston are safer.

App and game storage: Not all apps can be moved to the SD card. Even when supported, loading apps from SD is slower. Modern Android (and manufacturers) often prefer storing apps/data in internal memory for speed. Be realistic: treat the card for photos, videos, documents, and offline media, not as primary app storage.

Offline media downloads: Apps like Netflix, Amazon Prime Video or Spotify sometimes let you download content to SD cards, but not always and it depends on the app version. Check app settings after buying. If offline downloads are crucial, verify with reviews that a phone’s SD support works with those apps.

Formatting and backup: Always format a new SD card in your phone (Android will prompt this). This sets the right file system (usually exFAT). Keep backups of anything important (photos, documents) since SD cards can fail or get corrupted. Consider cloud or PC backups for irreplaceable files.

Card reliability: Beware of counterfeit cards, which often misreport capacity. Buy from reputable UK retailers or Amazon UK sellers. Check seller ratings and warranty. For high usage (constant media writes), a mid-range card from a known brand is better than an ultra-cheap unknown one.

Charger and accessories: Many modern phones (including these) no longer bundle a charger. Verify on Amazon UK if a power adapter is included or must be purchased separately. Using a proper fast charger (30W, 33W etc.) ensures quick top-ups as advertised.

Seller and warranty: On Amazon UK, watch for 3rd-party listings. Prefer Amazon “Shipped and sold by” or highly rated partners to ensure UK warranty. Check if the listing specifies “UK version” or “EU/UK model” to avoid region mismatches.

Price vs storage: Compare the cost of larger built-in storage models versus a standard model + SD card. Sometimes a phone with 256GB internal and no card is similarly priced to the 128GB+card combo. Do the math (cost per GB) including a decent SD card.

Frequently Asked Questions

Can I install apps on a microSD card? Only partly. Android generally encourages apps to live in internal memory because it’s faster. Some apps allow moving data or partial install to the SD card, but it varies by phone and app. Even if possible, you’ll see slower load times from SD. It’s safer to plan on using the card for media, documents and downloads, not as primary app storage.

Do I really need a 1TB or 2TB card? For most people, no. A 256GB or 512GB card already holds thousands of photos, hours of video or lots of movies. 1–2TB cards are useful for power users (e.g. filmmakers, collectors) who store very large files offline. Also check the phone’s spec – not all officially support 2TB (some older Android limits only up to 1TB), despite vendor claims.

What is a hybrid SIM slot? A hybrid slot is where the second SIM tray doubles as the microSD slot. In other words, you either insert two SIM cards or one SIM + one SD card. You can’t have two SIMs and a card together. Always check if the phone’s description says “SIM 1 + SIM 2 (or microSD)”.

Which microSD speed class is best for video? For Full HD video, a Class 10 (U1) card usually suffices. For 4K video or burst photo shooting, pick a faster card: U3 (V30) or above, which guarantee at least 30 MB/s sustained write speed. Cards labelled A1 or A2 are also optimized for app usage (random reads/writes). In practice, brands like SanDisk Extreme (V30) or Samsung EVO Plus (U3) are good choices for reliable video recording.

Which of these three phones is best for most UK buyers? It depends on priorities. The Motorola Moto G77 5G is the best overall all-rounder: it has 5G, strong specs and truly large expandable storage (dedicated slot up to 2TB). The POCO M7 is best if battery life and space (photo/video/data) is your sole focus, at the expense of speed and 5G. The Samsung A17 5G is the mainstream pick – it offers 5G and 6 years of updates with Samsung brand support, but remember its SIM/SD slot is hybrid.

Final Verdict

Motorola Moto G77 5G is the best overall choice for buyers who want modern 5G performance, strong everyday features (OLED 120Hz, 8GB RAM) and generous expandable storage (128 GB + up to 2 TB) → Check price on Amazon UK

POCO M7 is the best long-battery option for buyers who store downloaded films, music, photos and videos and prioritise maximum capacity over premium performance (4G only, Snapdragon 685) → Check price on Amazon UK

Samsung Galaxy A17 5G is the best affordable mainstream option for buyers who want expandable storage, 5G connectivity and long software support (6 years of updates) from a familiar brand → Check price on Amazon UK

We update our comparisons regularly to keep everything accurate, up to date, and UK-focused.