Motorola Signature vs OnePlus 15R: Which Snapdragon 8 Gen 5-powered smartphone should you opt for?

• By Ramneek Singh
Published On: 26 January 2026 | 09:00 IST

The Motorola Signature (review) has just launched in India, over a month after the Snapdragon 8 Gen 5-powered OnePlus 15R‘s debut. While this makes it the second smartphone to rock the said chipset, the Signature is Motorola’s fresh take on a premium smartphone that is equipped with top-of-the-line hardware, particularly in the camera and display departments. The OnePlus 15R (review), on the other hand, follows the same tried and tested formula of OnePlus ‘R’ series by placing heavy emphasis on performance, long battery endurance, and smooth software interactivity.

Since the Motorola Signature will be available for purchase on Flipkart starting at Rs 59,999 from January 30th onwards, is it worth purchasing over the OnePlus 15R, which is priced lower at Rs 47,999? Find that out in this detailed comparison as we pit the two Snapdragon 8 Gen 5 smartphones head-to-head to help you decide which one is the better fit for you.

A matter of quad-curved vs flat display

While quad-curved displays on smartphones are slowly fading away across all price ranges, the Motorola Signature carries on the legacy by featuring a 6.8-inch AMOLED display that has subtle curved edges on all four sides. In comparison, the OnePlus 15R opts for a completely flat AMOLED panel that also measures 6.8-inches. Another key difference in their displays is that the Motorola Signature supports LTPO technology, while the OnePlus 15R uses LTPS.

With LTPO support, the Signature can dynamically adjust the display’s refresh rate between 1Hz and 165Hz, depending on the on-screen content to conserve power, while the 15R’s LTPS panel uses software-based tuning to switch between fixed refresh-rate presets. Since the Motorola Signature carries a significantly smaller battery than the OnePlus 15R (7,400mAh) at 5,200mAh, the addition of LTPO could go a long way in enhancing its battery life.

Since both displays carry a 1.5K resolution, the visuals delivered by both smartphones were detailed and crisp, along with vibrant and peppy colour tones. Similarly, both handsets support a 165Hz refresh rate, which is primarily reserved only for games, such as Call of Duty: Mobile, at least on the OnePlus 15R.

A slim vs a robust design

The Motorola Signature’s design is in stark contrast to the OnePlus 15R. Given its higher price, Motorola has lent the Signature a sleek, lightweight design, striking a thoughtful balance between easy portability and in-hand comfort. The fabric finish, at least on Pantone Martin Olive colour, feels pleasant to touch and hasn’t picked up stains during our use. The device is also available in Pantone Carbon colour.

In comparison, the OnePlus 15R has a flat rear glass and features three colour options: Charcoal Black, Mint Breeze, and Electric Violet. It weighs 213 gms and comes with a side profile of 8.1mm, making it bulkier than the Motorola Signature’s 186 gms build and 7mm thickness.

If you’re after a phone that is sleek and has a distinct rear finish, the Motorola Signature is the one you should lean towards, while the OnePlus 15R’s robust and hefty design translates to balanced weight distribution and a larger battery. For protection against accidental water spillage, the Moto Signature is IP68/69 secured, while the OnePlus 15R gets a tad better ingress protection with IP66, IP68, IP69, and IP69K ratings.

Better thermal efficiency aids OnePlus 15R’s performance

Despite sitting a tier below the flagship-grade Snapdragon 8 Elite Gen 5, the Snapdragon 8 Gen 5 running inside the Motorola Signature and the OnePlus 15R renders smooth and reliable performance for everyday use. Be it scrolling through the UI, streaming, browsing, or multitasking, there isn’t any noticeable difference between the two smartphones.

However, if you plan on playing graphically demanding games for hours, the OnePlus 15R could be a better pick. We played BGMI and Call of Duty: Mobile for 30 minutes each at identical settings on both handsets, and the Moto Signature saw a temperature rise of around 15.5 degrees Celsius, while the 15R increased its temperature by 8 degrees Celsius.

Similarly, in raw benchmarks, such as the CPU Burnout throttle test, the OnePlus 15R managed to sustain 58 percent of its peak performance, whereas the Moto Signature dropped its performance to 39.1 percent. The OnePlus 15R’s superior gaming and benchmark results could be attributed to its thermal cooling system and a larger internal build that’s likely helping in better heat dissipation.

Hello UI vs OxygenOS 16

Just like their design and build, the Motorola Signature and OnePlus 15R run on entirely different-looking software skins, even though both are based on Android 16. The Motorola Signature features Moto’s Hello UI custom skin, which is promised to receive seven OS upgrades and security updates, while the OnePlus 15R comes with OxygenOS 16 out of the box. Its software support is shorter at four OS upgrades and six years of security patches.

While we’ve covered both Motorola’s Android 16 update and OnePlus’ OxygenOS 16 through dedicated hands-on stories, here’s a gist of what you can expect out of both these skins:

Motorola Hello UI on Android 16

Heavily based on stock Android, Hello UI on the Motorola Signature is swift to operate and offers a moderate level of customisation, including changing lockscreen clocks, adding widgets, switching app icon shapes, and accent colour theming. It also retains the traditional Moto gestures, such as the twist to open the camera, along with the chop gesture to trigger the flashlight.

The dedicated AI Key on the Signature’s left frame can be pressed to open Notes or give a summary of your notifications through Update Me. A long press of the key summons Moto AI features like image generation, recording and transcribing notes, creating summaries, and saving memories, among other tools.

OxygenOS 16

If you’re looking for software that is customisable to a great extent, OxygenOS 16 fulfils that need. From adding large lockscreen clocks to enlarging the homescreen icons and folders to personalising your desktop view with widgets, it does it all. The skin also gets more AI features sprinkled throughout the UI, such as AI Writer, Mind Space, and tons of AI imaging features.

Just like Moto Signature, the OnePlus 15R is equipped with a ‘Plus Key’ on the left spine, which you can customise to launch the camera, switch sound profile, take screenshots, analyse the screen using Mind Space, and more. In a nutshell, OnePlus gives users more control over the dedicated button present on the OnePlus 15R.

On the flip side, the OnePlus 15R comes with more pre-installed apps. While most can be uninstalled or disabled, some users may still find them overwhelming.

Superior camera setup on Motorola Signature

On the camera front, the Motorola Signature features far superior hardware, as it is equipped with a 50MP 1/1.28-inch Sony Lytia 828 main camera, a 50MP 1/1.95-inch Lytia 600 periscope lens with 3x optical zoom, and a 50MP ultrawide camera. The OnePlus 15R settles with a 50MP 1/1.56-inch main camera and an 8MP ultrawide on the rear. For selfies, both handsets feature autofocus support, where the Moto Signature gets a 50MP shooter, while the 15R rocks a 32MP front camera.

Some camera shots captured using Motorola Signature:

As for the camera outputs, the Motorola Signature produces enough details using its main and periscope lenses, though the images lean towards the saturated side. In certain instances, the images can turn out overexposed in daylight, but the overall results are serviceable. Since the OnePlus 15R omits a telephoto lens, the Moto Signature’s periscope does a remarkably better job in producing sharper zoom images. It also comes in handy for capturing portrait shots and macros with natural bokeh and crisp details.

Some camera samples shot using the OnePlus 15R:

The OnePlus 15R’s main camera outputs punchy, saturated and realistic tones, along with a respectable dynamic range and well-balanced exposure, even in shadow-heavy areas. In low light, the Signature’s larger sensor size is able to pull in more light, resulting in clearer and more detailed images than the OnePlus 15R.

If a versatile camera setup is up on your priority list, you can’t go wrong with the Motorola Signature; however, if you can do with a decent main camera for casual photography, you can side with the OnePlus 15R for its other advantages, such as better performance and battery life.

One-sided battery performance

The Motorola Signature carries a modest 5,200mAh battery, while the OnePlus 15R is equipped with the largest battery on a OnePlus phone yet, at 7,400mAh. When it comes to topping up the battery, both are equally matched. The Motorola Signature gets 90W charging support through the included charger, which takes the phone from 20 to 100 percent in around 40 minutes.

OnePlus 15R also comes with a bundled charger, but at 80W, which juices up its significantly larger battery from 20 to 100 percent in under 50 minutes. As for the battery endurance, the Motorola Signature lasted 12 hours and 53 minutes in our in-house PCMark battery test, while the OnePlus 15R was able to run for over 18 hours on a single charge in the same test.

The bottom line is, the OnePlus 15R not only boasts a bigger battery, but also takes almost the same duration for a full charge, making it the better pick for those prioritising battery life.

Summing up

Coming at a starting price of Rs 59,999, the Motorola Signature can be a suitable purchase for those who seek a discrete rear panel finish in a sleek form factor, a premium-looking quad-curved display, and significantly longer software support. It also sits at an advantageous position by rocking a versatile camera setup that includes a periscope lens, potentially unlocking many photography use cases like portraits, long-range zoom, and macro shots.

While the performance through the Snapdragon 8 Gen 5 on the Motorola Signature may suffice for daily workloads, the OnePlus 15R with the same chipset is a better gaming and thermally efficient performer. It also triumphs the Signature in terms of battery life, AI features, and better software customisation.