Although smaller, the 6.49-inch screen is equipped with state-of-the-art 120Hz refresh rate technology this time around. And somehow, the overall more compact, slightly thinner, and slightly lighter XR21 packs a larger 4,800mAh cell promising two days of autonomy between faster 33W charges.
So, yeah, that seems like another solid step in the right direction, as is the IP69K water resistance rating. That means the XR21 is protected against high-pressure, high-temperature water jets in addition to good old fashioned immersion, not to mention dust, extreme temperatures in general, and even repeated drops on hard surfaces like concrete from a height of up to 1.8 meters.