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What’s the latest?
Hong Kong-based Chinese smartphone company Tecno has just introduced two ultra-slim phones, arriving just ahead of the expected announcement of the iPhone 17 Air.
These devices introduce a new “Tecno Slim” series.
The 4G Tecno Spark Slim is only 5.93mm thick, while the 5G-compatible Pova Slim is slightly thicker at 5.95mm. While these are impressive, they still don’t quite match Samsung’s Galaxy S25 Edge, which measures an incredibly thin 5.8mm.
Despite being a bit thicker, Tecno’s new phones boast significantly larger batteries—packing a 5,160mAh capacity compared to Samsung’s 3,900mAh in their latest models. Both models feature a back cover made from aerospace-grade fiberglass, which Tecno claims is 0.19mm thinner than standard composite materials. This construction offers three times the strength and twice the toughness of typical materials.
Why does this matter?
As phones continue to shrink, it’s clear that slimness comes with some trade-offs, especially regarding battery life. The trend toward thinner devices is accelerating, with Tecno jumping on this bandwagon.
- Samsung started this movement earlier this year with the Galaxy S25 Edge.
- Foldable phones like the Oppo Find N5, Honor Magic V5, and Galaxy Z Fold 7 have also adopted ultra-slim profiles, pushing the limits of thinness.
- At IFA 2025, Samsung showcased the Tab S11 Ultra—a tablet just 5.1mm thick.
- Even Apple is expected to unveil their own slim model with the upcoming iPhone 17 Air.
Why should you care?
Reducing physical size usually means trimming down battery capacity, which impacts how long your device can run between charges. Although the new Tecno phones feature larger batteries, they still use high-density lithium cobalt oxide cells rather than silicon-based solutions, which could influence overall battery performance.
In our review of the Galaxy S25 Edge, battery life was underwhelming due to the small battery size. Tecno’s approach to packing a larger battery into such a slim body gives hope that future devices might balance size and longevity better. Although it’s uncertain if upcoming Apple devices will follow suit, positive developments in battery technology suggest improvements ahead.
What’s next?
We’ll soon get a hands-on look at the Tecno Slim series, so stay tuned for our in-depth impressions.
- Pricing and availability details haven’t been finalized, and it’s unlikely these phones will be released in the U.S.
- Meanwhile, Apple’s highly anticipated September 9 event is just around the corner, where they’re expected to introduce the iPhone 17 and the iPhone 17 Air.
Published by
Digital Trends
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