Samsung Galaxy Z Fold3 5G: The Complete Review of Samsung’s Boldest Foldable

There is something Samsung simply cannot resist about foldable phones. Even after a rocky start — including a recalled first-generation Fold that never officially shipped to most markets — the Korean tech giant kept pushing. The result of that stubborn, relentless engineering commitment is the Samsung Galaxy Z Fold3 5G: the most refined, most capable, and most convincing foldable smartphone Samsung has ever built.

Released on August 27, 2021, the Galaxy Z Fold3 5G did not just iterate on its predecessor — it redefined what a foldable phone could be. First foldable with an official IPX8 water-resistance rating. First foldable with S Pen stylus support. First foldable with an under-display selfie camera on the inner screen. For Samsung fans and smartphone enthusiasts across the globe, the Z Fold3 was the moment foldable technology finally felt ready for the real world.

7.6 Inches  Foldable Dynamic AMOLED 2X — the largest display ever on a Samsung phone at launch

This article covers everything: the screen technology, 5G performance, camera system, battery and charging, durability innovations, price, and our final verdict. Whether you are a gamer, a creative professional, or simply someone who wants the most interesting smartphone available, this review of the Samsung Galaxy Z Fold3 5G has you covered.

Samsung Galaxy Z Fold3 5G — Full Specifications at a Glance

Before diving into the details, here is a comprehensive overview of everything packed into the Galaxy Z Fold3 5G:

Specification	Samsung Galaxy Z Fold3 5G
Display (Main)	7.6-inch Foldable Dynamic AMOLED 2X, 1768×2208 px, 120Hz
Display (Cover)	6.2-inch Super AMOLED, 816×2268 px, 120Hz
Processor	Qualcomm Snapdragon 888 5G (5 nm), Octa-core
RAM / Storage	12 GB RAM | 256 GB or 512 GB internal (no card slot)
Rear Camera	12 MP wide (f/1.8, OIS) + 12 MP telephoto (2× zoom, OIS) + 12 MP ultrawide (123°)
Front Camera	4 MP under-display (main screen) + 10 MP cover camera
Battery	4,400 mAh | 25W fast charge | 11W wireless | 4.5W reverse wireless
Operating System	Android 11 (launched); upgradable to Android 14
S Pen Support	Yes — S Pen Fold Edition (sold separately / pre-order bundle)
Durability	IPX8 (1.5m for 30 min) | Armor Aluminum frame | UTG screen
Connectivity	5G (sub-6GHz + mmWave) | Wi-Fi 6E | Bluetooth 5.2 | NFC | UWB
Colors	Phantom Black | Phantom Silver | Phantom Green
Launch Price	Starting at $1,799 (256 GB) | $1,999 (512 GB)

Screen Technology and 5G Network

The Samsung Galaxy Z Fold3 5G is built around the most remarkable display package ever placed inside a consumer smartphone. It operates as two very different devices depending on how you hold it — a narrow, tall smartphone when folded, and a pocketable tablet when opened — and its screen technology rises to meet both personalities.

The Main 7.6-Inch Foldable Display

When you unfold the Galaxy Z Fold3 5G, you are greeted by a 7.6-inch Foldable Dynamic AMOLED 2X display running at a resolution of 1768×2208 pixels and a silky-smooth 120Hz refresh rate. The AMOLED panel delivers the deep blacks, vivid colours, and infinite contrast ratios that Samsung is famous for, and the Dynamic AMOLED 2X certification means it supports HDR10+ content for streaming and gaming at their highest visual quality.

🎮 For Gamers: The combination of a 7.6-inch AMOLED canvas, 120Hz refresh rate, and Snapdragon 888 5G processing makes the Z Fold3 one of the most powerful mobile gaming devices ever released. Games do not just run — they feel alive.

The 6.2-Inch Cover Display

When folded, the Galaxy Z Fold3 5G reveals a 6.2-inch Super AMOLED cover screen running at 816×2268 pixels — also with a 120Hz refresh rate, upgraded from the 60Hz cover display on the Z Fold2. This upgrade is significant: everyday scrolling, notifications, and one-handed phone use all feel premium and fluid even without opening the device.

Under-Display Selfie Camera

One of the most technically ambitious features of the Z Fold3 5G is its under-display selfie camera embedded beneath the inner foldable screen. Rather than a punch-hole cutout interrupting the display, Samsung hides the 4 MP front camera under the panel itself, keeping the full 7.6-inch canvas uninterrupted. The technology is impressive engineering, though it comes with a tradeoff — the 4 MP resolution is lower than typical front cameras, and images can appear slightly soft compared to the 10 MP cover camera.

5G Connectivity: Gaming, Streaming, and Beyond

The 5G in Samsung Galaxy Z Fold3 5G is not a marketing badge — it is a genuine upgrade to how you experience the device. The Z Fold3 supports both sub-6GHz and mmWave 5G bands and is compatible with all major US carriers including T-Mobile, AT&T, and Verizon. Paired with Wi-Fi 6E and Bluetooth 5.2, the Z Fold3 is one of the most connected smartphones ever released.

For gamers specifically, 5G transforms the experience. Low-latency 5G means online games do not freeze, lag spikes disappear, and streaming platforms deliver content without buffering. Game load times are estimated to be up to five times faster over 5G compared to 4G LTE connections. Web browser games and cloud gaming platforms like Xbox Cloud Gaming and GeForce Now perform flawlessly on the Z Fold3’s large screen.

• Low latency eliminates lag in competitive online gaming
• Super-fast download speeds mean large game files and app updates finish in seconds
• HD web browsing loads pages instantly without compression artefacts
• Streaming video in 4K HDR becomes practical on a mobile connection
• Cloud gaming over 5G is viable for the first time on a mainstream handset

S Pen Support: For Creators on the Move

The Samsung Galaxy Z Fold3 5G is the first foldable smartphone in history to support the S Pen stylus — and it changes everything for creative professionals. The S Pen Fold Edition features a retractable tip designed specifically for the foldable display’s ultra-thin glass surface. Illustrators, designers, and note-takers can sketch, annotate, and write naturally on the Z Fold3’s expansive 7.6-inch canvas, then transfer their work to a drawing tablet or desktop application.

✏️ For Artists & Creators: The S Pen on a 7.6-inch tablet-sized screen is genuinely different from using it on a traditional phone. Sketching, annotating documents, and handwriting notes feel natural and spacious — this is the Galaxy Note experience, evolved and expanded.

Samsung addressed stylus-related durability concerns proactively. The layers of the Z Fold3’s inner display were rearranged during engineering to achieve screens that are 80% more durable against stylus scratches than the previous Z Fold2 series. The result is a surface that handles both finger touch and stylus input without compromising longevity.

Camera System: Triple Rear, Under-Display Front, and Cover Selfie

The Samsung Galaxy Z Fold3 5G carries a triple-camera system on the rear that holds its own against Samsung’s flagship S-series handsets. It is not the most camera-focused phone Samsung makes — the Galaxy S21 Ultra retains that crown — but for a foldable device, the imaging capability is genuinely impressive.

Rear Triple Camera Setup

✔  12 MP Wide (f/1.8, OIS): the primary lens captures detailed, well-exposed images in most lighting conditions. Optical image stabilisation (OIS) keeps shots sharp even when shooting handheld in low light.

✔  12 MP Telephoto (f/2.4, 2× Optical Zoom, OIS): the telephoto lens delivers clean 2× optical zoom for portraits and medium-distance subjects, again supported by OIS for sharper results.

✔  12 MP Ultrawide (f/2.2, 123° Field of View): the ultrawide lens captures sweeping landscapes, architecture, and group shots with a 123-degree viewing angle — ideal for creative composition on a large display.

One creative advantage of the Z Fold3’s form factor is Flex Mode — the ability to fold the phone at 90 degrees and use it as its own tripod. The camera app adapts to Flex Mode, placing the viewfinder on the upper half and controls on the lower half, allowing hands-free photography and video recording without an external stand.

Front Cameras: Two Options

Under-Display (4 MP): The inner under-display camera prioritises an uninterrupted screen. Photo quality is acceptable for video calls but not ideal for high-resolution selfies.

Cover Camera (10 MP, f/2.2): The cover-screen selfie camera delivers significantly sharper selfies. With the outer display, you can also use the main triple-camera system for selfies — a genuine advantage that most traditional phones cannot offer.

📷 Pro Tip: Use the cover camera for selfies and photos requiring detail. Flip the phone and use the main rear cameras — you can preview the shot on the cover screen — for the highest selfie quality available on any foldable phone.

Resilience and Durability of the Z Fold3

Durability has been the elephant in the room for foldable smartphones since the beginning. Early foldables scratched easily, the hinges felt fragile, and water was an immediate concern. Samsung attacked all three problems head-on with the Galaxy Z Fold3 5G, and the results are the most durable foldable phone the company has ever shipped.

Armor Aluminum: A New Alloy, Engineered for Folds

Samsung developed and patented an entirely new aluminium alloy specifically for the Z Fold3 series: Armor Aluminum. Applied to the device’s most vulnerable structural points — the frames and hinges — Armor Aluminum reinforces the device’s strength by more than 10% compared to conventional alloys. The hinge is the most critical mechanical component of any foldable phone, and Samsung’s engineering team specifically targeted it for maximum reinforcement.

Ultra-Thin Glass (UTG) and the Inner Display

The inner foldable display uses Samsung’s proprietary Ultra-Thin Glass (UTG) technology rather than the plastic film used in many earlier foldables. UTG provides a more premium feel under the finger, greater scratch resistance, and better optical clarity. It is also more rigid when the device is fully open, reducing the flex and wobble that plagued earlier foldable displays.

IPX8 Water Resistance: A First for Foldables

The Samsung Galaxy Z Fold3 5G is the first foldable smartphone in the world to earn an official IPX8 water-resistance certification. That rating means the device can survive submersion in 1.5 meters of water for up to 30 minutes — the same standard as Samsung’s mainstream Galaxy S flagship range.

Achieving IPX8 on a foldable device required remarkable engineering. Samsung developed a specialised lubricant that adheres to all internal components and is rated to last for 200,000 fold cycles. Cured-in-place pipe gaskets covered with flexible epoxy seal the interior from water ingress at the hinge — another material Samsung developed specifically for this purpose. Stretchable PET film is applied as a masking layer to protect the interior of the fold mechanism during water exposure.

💧 IPX8 Certified: The Galaxy Z Fold3 5G can survive submersion in 1.5 metres of water for 30 minutes — making it the world’s first water-resistant foldable smartphone at the time of launch.

✔  Armor Aluminum frames and hinges: 10%+ strength improvement over conventional alloys

✔  Ultra-Thin Glass display: more rigid, more scratch-resistant than plastic film alternatives

✔  IPX8 certification: 1.5 metres of water for 30 minutes — a first for foldables

✔  Specialised lubricant: rated for 200,000 fold cycles, seals all internal components

✔  Flexible epoxy gaskets: seal the hinge mechanism against water penetration

✔  Gorilla Glass Victus: covers all external glass surfaces for drop and scratch protection

Battery Life and Charging

The Galaxy Z Fold3 5G is powered by a 4,400 mAh battery — a figure that sounds reasonable on paper but requires some context. The device drives two displays, a powerful Snapdragon 888 processor, and a 5G modem simultaneously, which places significantly higher demands on the cell than a conventional single-screen smartphone.

In real-world usage with mixed screen time across both the cover and inner displays, most users report the Z Fold3 lasting through a full day, though heavy users may find themselves at 20% by evening. The dual-screen nature of the device means it often replaces both a phone and a tablet — and the more it is used as a tablet, the more quickly the battery depletes.

Charging Speeds

✔  25W wired fast charging: fills the battery reasonably quickly, though slower than the 45W charging Samsung offered on the Note 10+ and S20 Ultra. A full charge from zero takes approximately 70 minutes.

✔  11W wireless fast charging: convenient for overnight charging on a Qi wireless pad.

✔  4.5W reverse wireless charging: allows the Z Fold3 to charge accessories like Galaxy Buds or a Galaxy Watch wirelessly from the phone’s own battery.

⚡ Charging Note: The omission of a 45W charger — which Samsung previously offered on Note and S-series flagships — is a notable step backwards on a $1,799 device. Samsung does not include a charger in the box, making this an additional purchase for most buyers.

Software, Multitasking, and Samsung DeX

The software experience on the Samsung Galaxy Z Fold3 5G is arguably as important as the hardware. Samsung One UI 3.1.1 (at launch, later updated to Android 14 over subsequent upgrades) was built with the large inner display in mind, offering app continuity, multi-window support, and a dedicated taskbar for foldable-optimised productivity.

Apps snap between the cover and inner display seamlessly as the phone is unfolded — a feature Samsung calls App Continuity. You can run up to three apps simultaneously in split-screen on the 7.6-inch display, turning the Z Fold3 into a genuinely productive work device. Drag-and-drop between open apps, floating window overlays, and a persistent taskbar make the Z Fold3 feel closer to a desktop operating system than any smartphone released before it.

Samsung DeX

Samsung DeX is supported on the Z Fold3 5G, allowing the device to connect to an external monitor, keyboard, and mouse for a full desktop computing experience. For professionals who want a single device that covers mobile, tablet, and desktop use cases, the Z Fold3 makes that possible.

Bixby and Samsung Pay

The Z Fold3 ships with Bixby voice assistant integration and Samsung Pay support (Visa and Mastercard certified), with NFC enabling contactless payments at checkout. Ultra Wideband (UWB) technology enables precise spatial awareness — the same technology powering Apple AirTag-style location tracking and enhanced AR features.

Price, Availability, and Value

The Samsung Galaxy Z Fold3 5G launched at a starting price of $1,799 for the 256 GB configuration and $1,999 for the 512 GB model. Both variants include 12 GB of RAM. There is no microSD card slot, so storage choice at purchase is permanent.

At launch, Samsung offered pre-order bundles that typically included an official Samsung case, the S Pen Fold Edition (which is sold separately under normal retail conditions), and a 25W wireless charging pad — a bundle worth several hundred dollars in accessories that made the pre-order proposition meaningfully better than the retail price alone.

Available colours: Phantom Black, Phantom Silver, and Phantom Green — all with the Gorilla Glass Victus exterior and Armor Aluminum frame.

Value Verdict: The Galaxy Z Fold3 5G is undeniably expensive. But it replaces two devices — a premium smartphone and a compact tablet — in one. For professionals who travel with both, the consolidated cost and convenience may justify the price premium.

Pros and Cons of the Samsung Galaxy Z Fold3 5G

✅ What We Love

✔  Industry-first IPX8 water resistance on a foldable smartphone

✔  S Pen stylus support — a first for any foldable device

✔  Breathtaking 7.6-inch AMOLED display with 120Hz refresh on both screens

✔  Snapdragon 888 5G delivers flagship-class performance across all tasks

✔  Armor Aluminum and Ultra-Thin Glass make this the most durable foldable yet

✔  Samsung DeX, multi-window, and app continuity create genuine desktop-class productivity

✔  Under-display selfie camera preserves an uninterrupted inner display

⚠️ Things to Consider

✘  No charger in the box — remarkable at this price point

✘  25W charging speed lags behind competitors and Samsung’s own previous flagships

✘  4 MP under-display camera quality is noticeably lower than cover camera

✘  Heavy and thick when folded — not for those who prefer slim phones

✘  S Pen sold separately — not included in standard retail packaging

✘  No microSD expansion — storage choice at purchase is final

Frequently Asked Questions (FAQs)

Final Verdict: Is the Samsung Galaxy Z Fold3 5G the Future of Smartphones?

The Samsung Galaxy Z Fold3 5G is not just a better foldable phone — it is proof that foldable technology has finally matured enough to be a serious recommendation for mainstream buyers. Samsung took every weakness of previous foldables — fragility, water sensitivity, software immaturity, no stylus support — and engineered convincing answers to all of them.

The 7.6-inch Dynamic AMOLED 2X display is genuinely magnificent. The Snapdragon 888 5G processor handles every task without hesitation. S Pen support on a foldable is a landmark achievement. And IPX8 water resistance on a device with a mechanical hinge is an extraordinary engineering accomplishment that deserves recognition.

The compromises are real — charging speed is disappointing, battery life requires management, and the price demands careful consideration. But these are the compromises of a first-in-class device pushing technology forward faster than convention demands.

Our Verdict: The Samsung Galaxy Z Fold3 5G earns a 4.5 out of 5. It is the most complete foldable smartphone ever made at the time of its release, and a genuine glimpse at what the future of mobile technology looks like. If you can afford it and crave innovation, this is the phone to own.