Motorola Signature · Four 50 MP cameras and a flagship chip in a 6.99 mm body

• Ultra-thin 6.99 mm, 186 g – the thinnest flagship we cover, and it still holds a 5,200 mAh battery
• Snapdragon 8 Gen 5 – Qualcomm's 3 nm flagship platform, kept cool by a new copper-mesh ArcticMesh system
• Four 50 MP cameras – a Sony LYTIA 828 main, a 50 MP ultrawide, a 50 MP periscope and a 50 MP front, awarded a DXOMARK Gold Label
• 6.8-inch Extreme AMOLED at 165 Hz with a 6,200-nit peak and Pantone-validated colour
• 5,200 mAh silicon-carbon battery with 90 W wired and 50 W wireless charging, plus reverse wireless and reverse wired
• IP68 and IP69 rated, with MIL-STD 810H durability
• Android 16 with seven years of OS upgrades and security patches

The Signature is the first phone in Motorola's new ultra-premium line of the same name, unveiled globally on 7 January 2026 and on sale in the UK from 30 January. Motorola pitches it as a statement flagship, and on the spec sheet it is exactly that: a phone that leads on thinness and screen brightness while undercutting the establishment on price.

We usually cover a phone the week it launches, so why this one now? Because it fills a real gap. It is a Motorola bar flagship we had not covered, it is comfortably the thinnest flagship in our catalogue, and five months on it has only got better value, with the phone now selling below its £899.99 debut. A genuine flagship that started attainable and has drifted cheaper is exactly the kind of phone worth flagging.

The headline is the body. At 6.99 mm thick and 186 g, the Signature is the thinnest bar flagship we cover, slipping under even the Samsung Galaxy S26 Ultra at 7.9 mm, and it manages that without hollowing out the battery or the cameras, which is the genuinely impressive part. The frame is aircraft-grade aluminium, the front is Corning Gorilla Glass Victus 2, and the back wears a textured finish rather than plain glass: a twill-inspired weave on PANTONE Martini Olive, a linen-inspired finish on Carbon, and a quilted Crystals by Swarovski treatment on the range-topping Violet Indigo.

Durability is full flagship, too. IP68 and IP69 sealing means it is dust-tight, survives immersion in fresh water and shrugs off high-pressure, high-temperature jets, and MIL-STD 810H adds shock resistance. Little luxury touches round it off, down to a Signature scent tucked into the box. Europe gets it in Martini Olive, Carbon and Violet Indigo.

The 6.8-inch Extreme AMOLED is an LTPO panel at 2,780 × 1,264 (a 1.5K resolution, 450 ppi), and two numbers stand out. The refresh rate runs up to 165 Hz, above the 120 Hz most rivals settle for, so scrolling and games look especially fluid. And the peak brightness reaches 6,200 nits, the brightest panel in our catalogue, which keeps the screen easily readable in direct sun. Motorola pairs it with Pantone-validated colour, 10-bit depth, Dolby Vision and HDR10+, a 360 Hz touch sampling rate for responsive gaming, and an always-on display.

Power comes from Qualcomm's Snapdragon 8 Gen 5, a 3 nm flagship chip clocked up to 3.8 GHz, so there is no performance compromise hiding behind the slim body. Keeping a chip this fast cool inside 6.99 mm is the hard part, and Motorola's answer is an ArcticMesh cooling system: a copper mesh woven above a liquid-metal layer, plus a large 6,002 mm² vapour chamber that spreads heat so the phone runs up to 4.4 °C cooler and holds its speed for longer under load. Motorola calls it the first phone with a copper-mesh liquid-metal cooler. Memory is a single generous configuration in our markets, 16 GB of LPDDR5X with 512 GB of UFS 4.1 storage.

For a phone this thin, the battery is a surprise. It packs a 5,200 mAh silicon-carbon cell, larger than the 5,000 mAh in many thicker flagships, and fitting it into a 6.99 mm body is the single most impressive line on the spec sheet. Charging is quick on both sides of the plug, too: 90 W TurboPower wired and 50 W TurboPower wireless, a wireless speed that beats the wired charging on plenty of rivals. It also handles reverse charging both ways, so you can top up earbuds or a watch on the back wirelessly at 10 W, or run a cable out to another device at 5 W.

Motorola makes the cameras the centre of the Signature, and it really is a quad 50 MP system, with all four sensors at 50 megapixels:

• 50 MP main on a large 1/1.28-inch Sony LYTIA 828, f/1.6, with OIS. The big sensor and bright aperture pull in plenty of light, so after-dark shots stay clean.
• 50 MP ultrawide, f/2.0, with a 122° field of view and autofocus that doubles as a macro lens for close-ups.
• 50 MP periscope telephoto on a Sony LYTIA 600, f/2.4, at 71 mm, with 3× optical zoom and up to 100× Super Zoom Pro. The 3× reach is the classic portrait and distant-detail range; past it, the 100× is digital and AI-assisted rather than true glass.
• 50 MP front camera on a Sony LYTIA 500, f/2.0, with autofocus.

Video records up to 8K in Dolby Vision at 30 fps, or 4K Dolby Vision at 60 fps. The system carries a DXOMARK Gold Label, and Motorola bills it as the best camera on an ultrathin phone. The one honest caveat is reach: 3× is modest for a self-styled camera flagship, and where the OPPO Find X9 Ultra builds a true 10× periscope into the body, the Signature leans on its sensor and AI once you push past 3×.

The Signature ships with Android 16 and Motorola's moto ai layer, with Google's Gemini built in for image generation and conversational photo editing. The support promise is a strong one for the price: seven years of OS upgrades and security updates, matching what the biggest names now offer, backed by Lenovo-Motorola's ThinkShield security. It is a long, credible commitment that keeps a phone bought today current well into the next decade.

The Signature went on sale in the UK, its first market, from £899.99 on 30 January 2026, which converts to roughly €999 / $1,140. Five months on, the price has already softened: Motorola's own UK store now lists the phone on its own at £799.99, European retailers sell the single 16 GB + 512 GB model for around €999 (and closer to €930 with a store code), and Motorola's German store discounts it to about €799. Either way, this is genuine flagship hardware, a Snapdragon 8 Gen 5, a quad 50 MP camera and a 6,200-nit screen, for meaningfully less than an Ultra.

One clear limit on availability: Motorola is not selling the Signature in the United States, so this is a UK, European and global-market phone only.