The main question when choosing between these two portable consoles is simple: do you want the Nintendo 3DS library or a low-cost handheld with a large game card? The used Nintendo 3DS XL and the new R36S retro handheld take different routes to a similar goal, and the right pick comes down to which library matters more to you.
Quick verdict
If you want to play Nintendo 3DS games and don't mind a used console, the Nintendo 3DS XL is the obvious choice. If you want a new, less expensive handheld that is ready to play retro games out of the box, the R36S is the stronger pick.
Comparison at a glance
| Product | Listed Price | Condition | Storage | Game Source |
|---|---|---|---|---|
| Nintendo 3DS XL | $154.00 | Used (VG tier available) | 16GB SD card included | Nintendo 3DS games from cartridges |
| R36S Retro Handheld | $30.99 | New | 64/128GB card options | 20000+ games on the card |
Where each product wins
The Nintendo 3DS XL wins for anyone who wants the Nintendo 3DS platform. It is region-free, so you can play games from different regions, and it includes a charger and a 16GB SD card. For players who already own 3DS carts, this console is the direct path to that collection.
The R36S retro handheld wins on price and on convenience. It is new, has a 3.5-inch IPS screen, and its card holds 20000+ games. That means you can start playing right away without hunting for separate cartridges.
Nintendo 3DS XL (Region Free, 16GB SD Card)

The Nintendo 3DS XL is the pick if you want the Nintendo handheld ecosystem. This listing focuses on the region-free nature, so you can explore cartridges from other regions. It also includes a charger, which is convenient for a used console. The $154 price is the main commitment, and the used condition means you should expect some cosmetic wear depending on the tier you choose. Since these units do not have eShop access, your gaming will rely on physical cartridges rather than digital downloads. If that matches how you play, the 3DS XL gives you the Nintendo 3DS library you are looking for.
R36S Retro Handheld (64/128GB Card, 3.5-inch IPS)

The R36S is the low-cost route into retro handheld gaming. At $30.99, it is a new unit, so you avoid the wear and tear of a used console. The 3.5-inch IPS screen is the key hardware highlight, and the open-source ArkOS system and USB connectivity are part of the package. The card size options of 64GB or 128GB are the main way to choose your configuration. The trade-off is that the experience depends on the games included on that card, and this is a separate library from the Nintendo 3DS catalog. For a low price and a portable that's ready to play, the R36S delivers a lot of retro gaming in a small package.
Final choice by use case
Your gaming habits and library should be the deciding factor. Choose the Nintendo 3DS XL if you are a Nintendo fan who wants to play 3DS cartridges, value region-free compatibility, and accept the cost of a used system. It is the better fit for players who already have a library of physical games.
Choose the R36S retro handheld if you want the lowest price, a new device, and a ready-to-run retro handheld. It is the better fit for curious gamers who want to explore retro titles without building a collection.