New rugged smartwatch promises offline maps, an LED flashlight and 100+ sports modes

Rollme has launched the Hero K1, a rugged smartwatch aimed at outdoor users and fitness enthusiasts that combines offline maps, a built-in LED flashlight, and a 1,200mAh battery. The watch is on sale for $59.99 through Rollme's official store in Ranger Black and Storm Gray as part of the company's Double 11 promotion.

The Hero K1 is built around an aerospace-grade aluminum alloy bezel, and Rollme says the watch has passed 15 US military-grade certification tests, without naming the standard used. It carries a 5ATM water resistance rating that covers swimming and exposure to harsh weather. The front houses a 1.46-inch HD display that the company says remains readable in direct sunlight.

Multi-satellite positioning support is intended to keep GPS tracking accurate in dense urban areas and remote terrain. Owners can import local offline maps to the watch for turn-by-turn navigation, route tracking, and guidance back to a starting point. Rollme has not said which satellite systems the Hero K1 uses or whether it supports dual-band GPS, a feature found on several of the company's other watches.

A compass, barometer, and altimeter report direction, elevation, and changes in air pressure, which the watch uses to help anticipate shifts in the weather. The LED flashlight is designed to light trails after dark. The watch handles hands-free Bluetooth calls through a waterproof speaker, while receiving and replying to WhatsApp messages is limited to Android phones. An AI assistant, accessed through Rollme's companion app, answers questions and provides translations.

Rollme lists more than 100 sports modes for workout tracking. Health features include continuous optical heart rate monitoring, blood oxygen measurement, and automatic sleep tracking that records sleep duration and stages. The company has not published a battery life estimate for the 1,200mAh cell or the resolution and panel type of the display.

The company says buyers are covered by a Double 11 price guarantee, which is meant to protect them if the watch sells for less during the November 11 shopping event. The terms of the guarantee do not appear on the product page. The Hero K1 arrives about six weeks after Rollme launched the Hero D6, a $79.99 rugged watch with a 2.13-inch AMOLED display, dual-band L1 and L5 GPS, and more than 170 sports modes.

Antony Muchiri - Tech Writer - 412 articles published on Notebookcheck since 2025

I’ve been obsessed with tech for as long as I can remember, so much so that I’ve become the unofficial "tech support" for my entire family. Whether it’s fixing gadgets, explaining specs, or recommending the best buys, I love breaking down tech for everyday people. That passion led me to writing about tech. When I’m not testing gadgets or writing reviews, you’ll probably find me hiking or doom-scrolling car listings (still hunting for my first ride, wish me luck, lol).