The Top 7 Lightest Smartphones of 2025
Smartphones in 2025 are no longer just about speed, battery life, or camera prowess; they’re about feel. And weight is quietly becoming a spec that matters again. As phone screens grow larger and batteries swell past the 5000mAh mark, some manufacturers are pushing back against the gravity of modern slabs with smarter design, lighter materials, and tighter engineering. The result: a new wave of devices that somehow manage to pack flagship power or serious utility into bodies that weigh less than ever.
Here are seven of the lightest smartphones launched in 2025, across flagship, midrange, foldable, and even budget segments, that prove you don’t need to feel the heft to get high-end function.
1. Samsung Galaxy S25 (162g)
Samsung kicked off the year strong with the Galaxy S25, a phone that returns to basics in the best possible way. At just 162 grams, it’s one of the lightest premium smartphones in recent memory, all without cutting the muscle. It runs on the 3nm Snapdragon 8 Elite chipset, co-engineered with Qualcomm, paired with a 4000mAh battery and a triple-camera system that includes a 50MP main sensor.
It’s rare for a flagship with a glass-and-metal build to drop below 170g, but Samsung managed to shave off weight from last year’s S24 (~167g) by refining materials and internal layouts. The 6.2-inch AMOLED screen, IP68 rating, and Gorilla Glass Victus 2 finish make it feel anything but stripped down. The Galaxy S25 is a reminder that premium doesn’t have to be heavy.
2. Samsung Galaxy S25 Edge (163g)
If the S25 is compact elegance, the S25 Edge is its futuristic twin, sleek, long, and impressively thin. At just 5.8mm thick and 163 grams, this 6.7-inch phone is lighter than many smaller devices. Samsung gave it the same Snapdragon 8 Elite processor and 12GB of RAM, but it sacrifices the telephoto lens and drops the battery slightly to 3900mAh to maintain that razor-thin profile.
It’s less about being the most powerful device on paper and more about showing what’s possible when you prioritize design. Samsung calls it the lightest “phablet-class” flagship of 2025, and it holds up in hand: light, sturdy, and surprisingly ergonomic for its size.
3. Xiaomi 15 (189–191g)
At first glance, Xiaomi’s latest flagship might seem like a typical premium phone. But at under 191 grams with a 5240mAh battery, the Xiaomi 15 is anything but average. It achieves the rare feat of combining longevity and lightness in a compact chassis. The 6.36-inch AMOLED display, 120Hz refresh rate, Snapdragon 8 Elite chip, and Leica-tuned triple 50MP camera system round out the package.
With 90W wired charging and a slim 8.1mm profile, Xiaomi shows how to maximize without overstuffing. In a market where most flagships with 5000mAh+ batteries weigh well over 210g, the Xiaomi 15 stands out as a clever exercise in balancing form and function.
4. Google Pixel 9a (186g)
Google’s Pixel 9a hits that sweet spot of size, weight, and simplicity. At 185.9g, it’s the lightest phone in Google’s 2025 lineup, even lighter than the flagship Pixel 9. You still get a 6.3-inch OLED screen, the latest Tensor G4 chip, and a generous 5100mAh battery.
The design is clean and practical, with a plastic-aluminum frame that keeps weight down without feeling cheap. It includes wireless charging, IP67 water resistance, and a dual-camera setup (48MP main + 13MP ultrawide). While it’s not featherlight by absolute standards, for a midrange 5G phone with real stamina, the Pixel 9a feels refreshingly light in the hand.
5. Vivo V50 (189g)
Vivo has quietly built a reputation for making well-balanced midrange phones, and the V50 continues that streak. With a 6.7-inch AMOLED screen and a 5000mAh battery, it should feel hefty, but it doesn’t. At 189 grams, the Satin Black edition of the V50 feels unexpectedly light, especially compared to similar phones that tip the scale past 200g.
It’s powered by a Snapdragon 7 Gen 3 chip with up to 12GB RAM, supports 90W fast charging, and includes dual 50MP cameras. Its 7.4mm thin body makes it easier to grip and pocket, while the polished design keeps it stylish. Vivo didn’t compromise on screen size or endurance, it simply engineered smarter.
6. Motorola Razr Ultra 2025 (199g)
Foldables are notorious for bulk, but Motorola’s 2025 Razr Ultra proves they don’t have to be. Despite a 7-inch inner screen, 4-inch outer display, and a huge 4700mAh battery, the Razr Ultra weighs just 199 grams. That’s practically unheard of in the foldable space.
The Snapdragon 8 Elite and 16GB of RAM make it a powerhouse, but it’s the titanium hinge and efficient component layout that really deserve credit. For comparison, Samsung’s Z Flip 6 (2024) comes in at around 188g with a far smaller battery. Motorola traded a few extra grams for all-day battery life, and it’s a fair deal.
7. Tecno Spark Slim (166g)
Tecno shocked the tech world at MWC 2025 with the Spark Slim, a concept phone that feels like it belongs in a sci-fi flick. Measuring just 5.75mm thick and weighing 166 grams, it’s the thinnest phone ever revealed, yet it houses a 5200mAh battery. Yes, really.
This phone is more proof-of-concept than daily driver, with modest specs and limited availability, but it makes a point: thin and light is possible, even in the budget segment. Whether or not the Spark Slim makes it to mass market, it sets a new benchmark.
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