While Samsung hinted that the Galaxy S25 Edge - its thinnest phone ever - could be launched next April, Apple is also expected to announce the iPhone 17 Air - its thinnest iPhone ever - later this year.
Recently at MWC 2025, Tecno - a phone brand from China - introduced Spark Slim, a super-thin smartphone concept but with a "huge" battery capacity.
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| Spark Slim Ultra-Slim Phone at MWC 2025 |
The Spark Slim measures just 5.75mm thick, making it the thinnest phone in the world , according to Tecno. The company says it has prioritized both durability and weight, using recycled aluminum materials along with a solid stainless steel frame.
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| Tecno Spark Slim is only 5.75mm thin |
Despite its ultra-thin design, the Spark Slim is still equipped with a battery with a capacity of up to 5,200mAh, supporting 45W charging capacity. This battery is even larger than many high-end smartphones currently on the market.
The ultra-slim smartphone features a 6.78-inch curved AMOLED display with 1.5K resolution and a 144Hz refresh rate. The company claims the display can reach a maximum brightness of 4,500 nits.
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| Close-up of dual camera cluster on Spark Slim phone |
The Spark Slim is equipped with a 50-megapixel main and ultra-wide camera, along with a 13-megapixel "mole" selfie camera on the front. Inside the product is a Snapdragon 7 Gen 3 chip, accompanied by 12GB of RAM and 256GB of storage.
Currently, Spark Slim is still at the prototype stage and Tecno has not announced when this super thin smartphone will be released to the market.
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