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Rejoice then, ye Lenovo faithful, for the new Yoga 900 makes up for much of the Pro 3's flaws. For starters, the Core M has been ditched in favour of a full-fat i5 or i7 Skylake processor, while the keyboard regains its dedicated function key row. It'll come in three different configurations, starting with a £1199 Core i5 version with 8GB of RAM and a 256GB SATA SSD. £1299 gets you the same spec with an i7, while £1399 bumps up the SATA SSD to 512GB. Sadly, there's no option at all for a quicker PCIe-based SSD. Pricing starts at $1,199 (!) in the US, but PR wouldn't tell us anything further.

All models come with the same non-replaceable 66Whr battery (up from 44Whr in the Pro 3, and good for around nine hours of battery life according to Lenovo), a 13.3-inch 3200×1800 (276 PPS) IPS touchscreen, Windows 10, two USB 3.0 ports, a USB Type-C port, a headphone jack, and an SD card reader. Lenovo's also boasting that it features a 32 percent larger fan, and thus the Pro 900 runs quieter than its predecessor.

There's a 16GB RAM option across the range when ordered direct from Lenovo, as well as three colours to choose from: silver, clementine, and gold. The downside to all the extra power under the hood is that the 900 has grown a little to accommodate it. At 14.9mm thick at the hinge end and 1.29kg in weight it's hardly a porker, but that's up from the 12.8mm and 1.19kg of the Pro 3. Users are unlikely to feel the difference hulking the thing around in a backpack, but for those interested in using it in tablet mode, that extra weight is noticeable.

As for that trademark hinge, it remains a remarkable piece of engineering. Lenovo boasts that the latest iteration is made up of 812 different pieces of aluminium and steel, and it's rated for 25,000 open-close cycles. While I didn't notice much difference in terms of feel between it and a Yoga 3—it remains a little too stiff at times, but that bodes well for standing it up in tent mode and longevity—it has received an aesthetic makeover. The hinge is now colour-matched to the laptop's body, which is particularly striking (read: totally bling) on the gold model.

While the Yoga 900 is more iteration then innovation, it's good to see that Lenovo has tried to fix many of the Pro 3's flaws. Its topsy-turvy form factor isn't quite as exciting now that Microsoft's entered the luxury laptop game with the convertible Surface Book, but for those not into plucking their screen from their laptop, the Yoga remains an appealing option. The Yoga 900 is set to hit retail by the end of October. Ars should have a review of the laptop once a review unit makes its way up to the Orbital HQ.