Casio G-SQUAD GBD-H2000 - "Powered by Polar" More: Casio H2000 on Amazon The partnership between Casio and Polar is marked by the release of the Casio G-SQUAD GBD-H2000 watch, featuring the "Powered by Polar" brand. Polar now licences its physiology algorithms to Casio, giving the watch brand access to 25 algorithms covering sleep, training, wellness, activity, performance, and recovery. This collaboration will benefit both companies, with Polar expanding its market and Casio providing users with a well-respected suite of training and recovery metrics. The Casio+Polar collaboration focuses on 5 key measures; Running Index, Training Load Pro (incl HR Zones, Cardio Load & Cardio Load Status), Energy used, and NIGHTLY RECHARGE. Running Index measures your running fitness level, calculated by Polar's VO2max formula and is best targetted as an upward trend over time rather than a daily metric Energy used during a workout indicates the energy source powering the body and provides insight for athletes and dieters alike, both of whom will probably be aiming to use a high proportion of fat as an energy source. Cardio Load assesses the strain on the body during exercise based on heart rate, workout duration, and intensity. Cardio Load Status evaluates accumulated load and fatigue over time, offering insight into the current training status. Next, the partnership measures recovery from the strain of a workout by evaluating overnight heart rate variations and their impact on the body's nervous system. Advancements in sports science and technology have enabled watches to provide insights into the effectiveness of a night's sleep. Also covered here are Polar's Sleep Stage Metrics (Sleep Plus Stages) Finally, the Serene Breathing Exercise is added. [gallery size="medium" columns="2" ids="79568,79567"] Opinion This is a great move for both companies. Presumably Polar makes some money out of the licencing fees but it also gains exposure to a whole new kind of customer plus the credibility of linking with a well-known brand like Casio. Casio, on the other hand, gives its products the credibility of algorithms that are 'correct' and proven. Then, providing Casio's sensor data is good, its customers will benefit from several leading-edge physiology metrics typically only available on more sports-focussed watches. This move from Polar makes me wonder if the likes of WHOOP could similarly licence its algorithms. More: WHOOP band detailed review and critique More: Casio H2000 on Amazon https://the5krunner.com/2025/10/31/2026-whoop-5-0-mg-review-discount-accuracy-strain-recovery-athletes/
