Pad 3 vs Galaxy Tab S12+

Quick answer: Consider the OnePlus Pad 3 if you want a roomier 13.2-inch Android display, Open Canvas multitasking and a US box that includes its fast charger. Choose the Galaxy Tab S12+ if its more manageable 12.6-inch screen, Galaxy ecosystem and included S Pen better support your work. Crucially, this compares the real US OnePlus 12GB/256GB Storm Blue with Samsung's Gray Wi-Fi 12GB/256GB. An international 16GB/512GB OnePlus test is not the product we're evaluating.

The exact pair: OnePlus Pad 3 US launch configuration, Storm Blue 12GB RAM/256GB Wi-Fi, versus Samsung Galaxy Tab S12+ Gray SM-X840NZAAXAR, 12GB/256GB Wi-Fi.

What you'll actually notice

These two tablets share an Android foundation, large displays and enough space for documents and entertainment. Their most useful differences are physical size, window-management features, and what you receive in the box.

The OnePlus has a 13.2-inch 7:5 display, which gives you more screen area and a relatively page-friendly shape. Its Open Canvas software is intended to make working across several supported apps easier. If your tablet often holds a travel itinerary beside a map or a reference document beside your notes, that is an understandable attraction.

The Samsung has a 12.6-inch screen and includes an S Pen with the selected US model. For someone who handwrites meeting notes or annotates PDFs, the pen may be the deciding feature before processor names enter the conversation.

Both have 12GB RAM and 256GB storage in these exact baselines. That does not guarantee matching speed, but it prevents a misleading comparison caused by using a more expensive foreign-memory configuration on one side.

What changes the choice

Start with handwriting, not the chip

If you need a pen on day one, Samsung's included S Pen simplifies the purchase. You know that the input accessory is part of the chosen model's standard package. Check the specific app's drawing and annotation features, but you needn't add a separate pen merely to get started.

OnePlus offers the Stylo 2 as a separate accessory. Its manufacturer press materials describe useful note-taking features, but it is not the standard US box item for the Pad 3.

Compare the devices with the pen you will use, not two bare tablet prices. The Samsung may have a meaningful system-cost advantage for a frequent handwriter; current offers and bundles still need checking.

OnePlus is bigger, and that helps only in certain work

A 13.2-inch versus 12.6-inch screen difference may be useful when you want a slightly larger reference canvas or show more content side by side. OnePlus's 7:5 screen shape and Open Canvas behavior are worth considering if you enjoy juggling apps.

But more screen isn't always better. If the device needs to fit on an airline tray, live in a smaller bag or remain comfortable to carry between rooms, the Samsung's more compact footprint may be appealing.

Try imagining your actual workflow: one video at a time, two documents together, or handwriting beside a reading. Physical use tells you more than a spec contest.

The included charger is a genuine OnePlus detail

OnePlus's official US/Canada launch explicitly identifies an 80W SUPERVOOC charger included in the box. That is a useful distinction because a buyer may otherwise need to budget for an additional compatible charger.

Do not turn its 80W capability into proof that it charges faster in every real-world scenario than Samsung; actual charging tests need comparable conditions and exact accessories. The benefit we can support is that the correct high-power charger is included in OnePlus's specified US package.

Samsung lists the tablet, S Pen, USB-C cable and ejection pin, but a wall charger should not be assumed included. That can change the accessory basket for buyers who don't already have a suitable adapter.

Galaxy and Open Canvas serve different habits

Samsung's software and Galaxy connectivity can be convenient if you own a Samsung phone or already organize work around compatible Samsung services. DeX-related features may appeal for keyboard-and-mouse use, but support depends on the app and setup.

OnePlus's Open Canvas is centered on arranging multiple apps and moving between tasks. If you regularly reference maps, messages and documents, that approach might suit you.

Neither interface makes Android run a full desktop Windows application. Before choosing either, check your must-have app, file-format support and external accessories. A keyboard is helpful only when the software does what you need.

Avoid imported performance stories

The US OnePlus Pad 3 press release specifies 12GB RAM and 256GB storage, not the 16GB/512GB configuration sometimes discussed in other regions. Comparing that foreign unit's benchmark to Samsung's US 12GB/256GB device would exaggerate the certainty of the result.

Both tablets have strong hardware, but we do not have a directly controlled, matched US sustained-performance or battery test to certify a winner. Manufacturer video-hour estimates and one-off game benchmarks are not interchangeable.

If a demanding game or video editor is your primary job, seek exact-variant testing of the app or game under a comparable method. For ordinary documents and streaming, prioritize the screen, pen and total cost.

You are comparing operating systems within Android, not identical experiences

Google Play may supply many of your apps on both, but manufacturers offer different software behavior and accessory ecosystems. Check whether your specific app supports split-screen, pen input, file export and any connection to a phone or computer.

It's reasonable to prefer the interface you already know, provided it meets your requirements. It's not reasonable to assume that a favorite Samsung-specific feature will appear on OnePlus or vice versa.

Check the complete US basket

A realistic OnePlus setup could include the separate Stylo 2, Smart Keyboard or folio case. Samsung may require a keyboard and charger but includes its S Pen. Promotions from a 2025 launch are not guaranteed to apply to a purchase in October 2026.

Compare the exact selected configurations and today's prices. A flash sale can change the value result without changing which device best suits your workflow.

The practical choice

For a user who types and multitasks more than they handwrite, the OnePlus's larger screen and Open Canvas design are sensible reasons to investigate it. For a user whose main task is notes or drawing with a pen, Samsung's included S Pen and Galaxy environment are compelling.

Neither is automatically the superior battery, gaming or display winner from the sources available here. A practical purchase is a fit decision first, price decision second.

When to choose OnePlus Pad 3

Choose the OnePlus if the 13.2-inch 7:5 canvas, Open Canvas workflow and included US 80W charger help your everyday routine. You should be comfortable budgeting separately for a pen or keyboard if needed.

Be sure you're buying the official US Storm Blue 12GB/256GB unit with the proper local warranty, not an import whose RAM, charger and support terms differ.

When to choose Galaxy Tab S12+

Choose Samsung if the slightly smaller screen is easier to handle, the included S Pen will be used regularly, or your favorite workflows already depend on Samsung-compatible apps.

Check the exact Gray SM-X840NZAAXAR Wi-Fi 12GB/256GB retail listing and any current keyboard/charger options.

Choose neither when

If you require iPadOS-only creative software or Windows desktop drivers, neither Android tablet is proven compatible. If you want a truly compact one-handed reading tablet, both may be too large. If your budget cannot accommodate the required accessories, revisit smaller Android models rather than relying on old promotions.

PIQSY conclusion

The OnePlus Pad 3 and Galaxy Tab S12+ are both credible large Android tablets, but they make different everyday promises. OnePlus favors a slightly bigger canvas and its multitasking approach; Samsung offers an included S Pen and a more compact premium Galaxy workflow.

Choose by the work you actually do. The correct US variants are 12GB/256GB on both sides. Anything else reopens an identity and evidence question before the comparison can be trusted.

Before buying: Confirm US variant IDs, actual included accessories, compatible Android apps, keyboard/pen total and current price and stock.

Evidence notes — private only

• OnePlus official US 12GB/256GB launch and 80W charger: https://www.oneplus.com/us/press/press-release/oneplus-launches-its-flagship-android-tablet-oneplus-pad3-in-the-united-states-and-canada
• Samsung US S12+ 12GB/256GB Gray Wi-Fi part: https://www.samsung.com/us/tablets/galaxy-tab-s12/buy/galaxy-tab-s12-plus-256gb-gray-wi-fi-sku-sm-x840nzaaxar/
• No imported 16GB/512GB OnePlus evidence, live US price or independent performance winner.