Update, October 30, 2026: A teardown of the Galaxy Fit 4’s companion app reveals its tiles, notification options, and health features. It also suggests built-in GPS is missing again. I’ve added the details below.
When I heard about Samsung Galaxy Fit 4 leaks, I honestly pictured it as a screenless fitness band. So many of them have cropped up in 2026 that I thought Samsung might join the fray. Instead, the leaked videos show a fitness tracker that looks pretty similar to the Galaxy Fit 3.
And that disappoints me. I’d like a better reason to get excited about the next fitness band than a few new colors and a slightly larger display. Samsung, please tell me the Galaxy Fit 4 finally has built-in GPS.
So, Android Authority obtained 360-degree videos of the Samsung Galaxy Fit 4. They show the device in black, white, and light blue. But a newer teardown of the companion app names the colors Black, Silver, and Light Green, so the final shades may not match the videos.
The tracker has a rectangular display with rounded corners and a physical button on the right side. There’s a silicone strap with a conventional buckle. Even the sensor layout on the back looks unchanged.
Next to the Galaxy Fit 3, which launched in early 2024, I’d have a very hard time telling them apart. Samsung still hasn’t confirmed anything yet. What we know comes from videos, August documentation tied to model number SM-R391, an FCC filing that points to Bluetooth 5.4 (up from 5.3), and now the teardown of the Fit 4’s companion app.
That teardown includes watch-face assets that measure 258 x 428 pixels. If those match the screen it Fit 4’s diaplay is a little taller than the Fit 3’s 256 x 402 panel.
So what will the Fit 4 do once it’s on your wrist? SammyGuru dug through the companion app’s code and found references to its features, as Notebookcheck reports. Here’s what turned up:
The Samsung Health app handles daily targets, cycle tracking, water and food logging, and breathing exercises.
My take? It all sounds familiar. The Fit 3 already measures blood oxygen and stress, sends high- and low-heart-rate alerts, and automatically detects workouts. It also offers the same sleep features.
The 12 tiles and notification modes sound new but, honestly, those would be pretty boring updates. I’m wondering: will the Fit 4 be just a surface upgrade? Or are they keeping one last feature from us?
Cosmetically, the Fit 4 looks a lot like its predecessor—and that’s fine. I’m just hoping Samsung fixes the Fit line’s biggest flaw: no GPS. Without it, fitness trackers must borrow your phone’s location for outdoor workouts. So if you leave your phone at home, you lose your route.
For runners, cyclists, and anyone who wants minimal gear, that’s a real limitation.
Unfortunately, the teardown isn’t encouraging. SammyGuru says built-in GPS “appears to be missing on this model too.” Samsung could still surprise us, but I’m lowering my expectations, all the same
True, Samsung already sells GPS wearables like the Watch9 and Galaxy Ring. But accurate outdoor workout tracking is a core job for a fitness tracker, and I wouldn’t consider it a luxury.
What’s more, a Samsung Galaxy Fit 4 with GPS would give current Galaxy Fit owners a clear reason to upgrade. Because the appeal of a fitness band is its simplicity. Runners don’t want to carry their phone just to track a run. They want their fitness tracker to do it so they can leave their brick of a phone at home.
Earlier leaks point to a Goodix GH3036 optical sensor. It’s a low-power module built for heart rate and health monitoring. But we can’t tell how accurate the readings will be or how the health experience improves from a number.
A fitness tracker—budget or not—should help me make sense of my activity, sleep, and workouts. Clear insights could make the Fit 4 worthwhile even if the outside barely changes, as long as Samsung keeps it affordable.
Need basic activity and sleep tracking right now? The Galaxy Fit 3 is still worth considering, especially if you find it discounted. Just know that it only works with Android.
If GPS matters to you, I wouldn’t count on the Fit 4. Look for a tracker that already has it built in. In the Samsung Galaxy Fit 3 vs. Galaxy Fit 4 matchup, the leaked design and feature list show only a few small changes so far. There’s still no word on price or release date.
The latest Galaxy Fit 4 leaks make GPS look unlikely, so the internals and price will have to do the talking. If the Galaxy Fit 4 keeps the familiar design but improves the internals, I’d be apt to recommend it.
Lauren has been writing and editing since 2008. She loves working with text and helping writers find their voice. When she's not typing away at her computer, she cooks and travels with her husband and two kids.