OnePlus has expanded its mobile accessory lineup with a new magnetic phone cooler that it says is the thinnest in the world. The device, called the Magnetic Ice Cooling Clip, targets users who push their phones hard, especially mobile gamers and people who run demanding apps for long periods.
The product launched alongside the OnePlus 15T on Tuesday, March 24, local time, signaling that OnePlus sees accessories as part of its broader smartphone strategy. At a relatively low price of 179 yuan, or about $25, the cooler aims to offer an affordable way to limit heat buildup without making a phone feel bulky.
A slim accessory built for heavy phone use
OnePlus says the Magnetic Ice Cooling Clip measures just 9.8 mm at its thinnest point. Its overall dimensions are 87.6 x 62 x 9.8 mm, although some structural sections reach 11.9 mm, which still keeps it extremely compact for a cooling accessory.
The weight is another key selling point. At 68 grams, the cooler is light enough to stay comfortable during long play sessions, video calls, or content recording without adding much strain to the hand.
Why phone cooling matters more now
Modern smartphones keep getting faster, but they also generate more heat when they run graphics-heavy games, record high-resolution video, or handle multitasking. That heat can affect comfort, battery behavior, and sustained performance over time.
External cooling accessories have become more relevant because they help devices maintain steadier performance under load. For gamers in particular, a cooler can reduce thermal throttling, which is when a phone lowers performance to control temperature.
TEC cooling and airflow design
The core of the Magnetic Ice Cooling Clip is a thermoelectric cooling system, or TEC. This type of cooling moves heat from one side of the device to the other, allowing it to produce rapid temperature reduction in a compact form.
OnePlus also uses a curved progressive air channel to manage airflow more efficiently. Cool air goes in from the top, while warm air exits from the side, helping the device maintain stable cooling without getting in the way of the user’s grip.
The cooler also includes a low-pressure centrifugal fan, which OnePlus says helps keep noise down while supporting the cooling system. That balance matters for users who want strong thermal control without an overly loud accessory.
Two modes for different use cases
OnePlus built the cooler with two operating modes so users can match performance to their activity. The quiet mode keeps noise to around 22dB, which is suitable for watching videos, taking calls, or using the phone in quieter settings.
The performance mode raises cooling output for more demanding tasks like gaming, while keeping noise at a claimed 36dB. That remains reasonably restrained for a device designed to run beside a smartphone at full load.
Main specifications at a glance
| Feature | Detail |
|---|---|
| Product name | Magnetic Ice Cooling Clip |
| Claimed status | Thinnest magnetic phone cooler in the world |
| Thickness | 9.8 mm at thinnest point |
| Dimensions | 87.6 x 62 x 9.8 mm |
| Weight | 68 grams |
| Price | 179 yuan, about $25 |
| Cooling system | Thermoelectric Cooling (TEC) |
| Noise levels | 22dB quiet mode, 36dB performance mode |
| Connection | USB Type-C |
| Power input | 5V/3A max |
| Compatibility | OnePlus phones, Oppo via ColorOS support, and iPhone |
Magnetic attachment and wider compatibility
A notable part of the design is the magnetic mount, which uses up to 10N of holding force. That strong attachment makes the cooler suitable for both OnePlus devices and iPhones, expanding its usefulness beyond a single brand.
OnePlus also added Bluetooth support, allowing deeper control through ColorOS on compatible OnePlus and Oppo devices. That gives users more flexibility when selecting cooling modes and adjusting behavior through software.
What this means for mobile gamers
Gaming remains the clearest use case for a gadget like this. Many popular mobile titles now push processors and graphics chips close to their thermal limits, especially in extended matches or competitive play.
A thin magnetic cooler helps address that problem without adding a bulky clamp-style accessory. It also keeps the back of the phone relatively compact, which can matter for users who prefer a cleaner setup while playing on the move.
Why the launch is strategically important
The timing of the launch alongside the OnePlus 15T suggests that OnePlus wants to present a complete ecosystem, not just a standalone smartphone. That approach can help the company compete more directly in a market where accessories often influence the overall user experience.
It also reflects a broader trend in mobile hardware, where brands are paying closer attention to heat management as phones become more capable. As device performance rises, cooling solutions are moving from niche accessories to practical tools for everyday users.
OnePlus has not positioned the Magnetic Ice Cooling Clip as a premium luxury product. Instead, it is targeting a specific problem with a compact design, cross-platform support, and a price that puts it within reach of many users who want their phones to stay cooler during demanding tasks.
