Mobile World Congress sees the biggest and best tech companies, the world over, gather in Barcelona to show off their latest, greatest products. MWC 2026 runs March 2 to 5 and we expect to see several major phone launches, some wild concepts and a lot of tapas. But what about products we saw in prior years?

From Samsung’s flagship Galaxy S phones to incredible hardware from Xiaomi, we’ve seen some amazing devices in the years CNET has been attending the show. But we’ve also seen a lot of unusual products that have promised more than they’ve delivered. 

From concept devices that are quickly forgotten to new gadgets that boast revolutionary functions, these are the MWC tech launches that arrived with a fanfare… but aren’t necessarily where you’d expect them to be today. 

Humane AI pin

AI might still be the biggest buzzword in tech, thanks to every phone company cramming their devices with all kinds of bizarre AI functions. But at MWC 2024, one company wanted to take that further. The Humane AI pin was a wearable badge that you could talk to and ask questions about your schedule, the weather or things like sports results. It could read answers out and even project them onto your hand with a laser. Because everyone loves lasers.

Sounds fun, right? And the company’s rhetoric around how AI-based devices like this will replace phones sounded compelling. However, the product, well, sucked (just ask CNET’s Scott Stein, who spent extended time with it) and the company was eventually swallowed by HP, with the Pin itself ceasing to function in February last year. If you were one of the early adopters, do let us know what you’ve done with that $699(!) paperweight now. 

Motorola Rizr

MWC is a great place to show off concepts that will excite technology nerds like us. Motorola has a good history of this at the show and the Rizr is one of my favorites. This phone didn’t just have a flexible display like we’ve seen on many of today’s foldable phones, its display could actually mechanically unroll at the push of a button, extending the top of the screen to give a more immersive display for watching videos or playing games. 

It was amazing to see in person and it was certainly a different idea on how to use flexible displays. But that’s all it was; an idea. Motorola hasn’t deployed the Rizr’s mechanical unfurling into any of its products, with its upcoming Razr Fold launch being just a standard book-style foldable. The reason is obvious: The technology is likely expensive and probably fragile too. Three years on and Motorola hasn’t said a thing about this cool concept, but I’ll still keep my fingers crossed for this year.

Xiaomi SU7 EV

Xiaomi might be better known for its superb camera phones, but the Chinese firm has fingers in many pies, including scooters, vacuums, air fryers and, er, water pistols. It was no surprise then that during MWC 2024, the company showed off its first EV, the Xiaomi SU7. With sleek, sporty looks and a promised range of over 470 miles, I was excited. 

I was excited again when the company showed off an even more performance-focused model at last year’s show, which had already delivered some blistering track times on the infamous Nürburgring. But I’ve yet to get behind the wheel. While Xiaomi is already producing and selling cars in its native China, the company has no plans to launch in the UK or wider Europe until at least 2027 and they almost certainly won’t sell in the US at all. 

As a result, I feel like I’ve been teased somewhat with the promise of this slick, powerful EV that would have sat perfectly on my driveway. In reality, I still have a big wait ahead of me, if the SU7 European launch happens at all. Sales of the SU7 in China have surpassed those of the Tesla Model 3, according to a report by Car News China. Meanwhile, the same story shows that the SU7 Ultra’s sales have declined dramatically due to a number of controversies and lawsuits around the car and Xiaomi’s rollout.

Samsung Galaxy Ring

Samsung’s Galaxy Ring made for an interesting MWC in 2024. Here was a new type of wearable that promised advanced health and fitness tracking, while blending into your daily life by sitting unobtrusively on your finger. And that’s what it does, with CNET giving it a healthy 8.5 out of 10 in our full review. 

But that was in 2024, and a full two years later, I’m left wondering what’s happening with the wonderful world of smart jewelry. Samsung has made no official comment around a follow-up, through rumors suggest we may see one in late 2026 or 2027. Smart ring manufacturer Oura, meanwhile, has filed a public lawsuit against Samsung and other smart ring companies claiming patent infringement. This is likely one of the reasons we’ll have to wait for a Galaxy Ring 2. While other smart rings do exist — like the Oura Ring 4 — it’s not a category that flourished after Samsung launched its ring. 

There’s no Google Pixel Ring, no Apple iRing and not even an LED-infused Nothing Ring (1). Most other smart rings are made by smaller companies, such as Pebble’s recently announced $75 recyclable ring. Smart rings may have a place on our hands for a while yet, but Samsung’s lengthy delay in launching a follow-up might suggest that it’s not exactly a priority product. 

Motorola wrist phone

I said that the aforementioned Moto Rizr was «one of» my favorite MWC concepts.That’s because the company’s flexible wrist phone from 2024 absolutely takes my top spot. This candybar-style Android phone had a fully flexible body that let you to wrap the whole thing around your wrist and wear it like something resembling Leela from Futurama’s wrist-mounted doodad. 

I found it extremely intriguing. Here was a phone that doesn’t bulge out your skinny jeans when it’s in your pocket, but that’s also just a glance away like a smartwatch. And compared to the precision engineering required for the Rizr, the wrist phone’s technology seemed relatively achievable. After all, we already have flexible displays and this didn’t even require any specialized tiny motors — you just whack it onto your wrist like a ’90s slap bracelet. 

But, like the Rizr, the wrist-mounted phone remained just a flight of fancy I experienced oh so briefly for a few days in Spain. And like any holiday romance, perhaps it’s best for me to simply remember it for what it was and not spend my days pining for what could have been.

With MWC 2026 just a few days away I’m excited to see new and wild products show their face, and I’m curious to see which of them will have staying power.