Two Flagships for Very Different Priorities

The OnePlus 15 and Motorola Razr 50 Ultra present two contrasting visions of what a flagship phone can be. OnePlus goes all in on raw performance, full-scale screen and battery size, while Motorola brings a foldable form into everyday reliability, emphasising compactness and novelty. UK users looking at these should weigh whether they want full-on power or something that blends style and practicality.

In terms of design and carry-experience, the Razr 50 Ultra has the clear edge for portability. Its foldable layout means it can shrink in your pocket when closed, and offers a cover display for quick tasks without opening the device. The OnePlus 15, by contrast, is a large, typical flagship slab – it offers more on screen area but takes up more pocket space and is fuller in hand.

When we move to display and performance, both devices impress. The OnePlus 15 features a top-tier chipset (Snapdragon 8 Elite Gen 5 in many markets), a 6.78-inch LTPO AMOLED and ultra-high refresh rates up to 165Hz. It’s built for power users who expect the fastest animations, the most responsive gaming and multitasking. The Razr 50 Ultra matches some of that ambition with its foldable 6.9-inch inner display and high refresh, but the foldable mechanism and form factor mean some trade-offs (thermals, hinge durability, battery size) compared to a slab.

Battery and charging show further differences. The OnePlus 15 offers a large 7,300mAh+ battery (depending region) and very fast wired/wireless charging, which means fewer compromises for heavy users. The Razr 50 Ultra, being foldable, has more modest battery capacity and charging speeds – sufficient for daily use but not for pushing marathon sessions or intensive gaming as the OnePlus can.

In everyday reliability and user case, the OnePlus 15 shines if you’re after flagship-everything: performance, battery stamina, versatility and future-proofing. The Razr 50 Ultra shines if you value portability, style, foldability and a phone that stands out while still delivering solid performance for daily tasks, social media, camera snaps and commuting.

In summary: go with the OnePlus 15 if your priority is maximum flagship muscle and you’re okay with size and weight. Choose the Motorola Razr 50 Ultra if you want a foldable with design flair, lots of practicality and a more compact daily carry option.