Huawei unveils the tracker's new design and features – but the pricing and release date are still unknown. Huawei has detailed the Band 10 ahead of the upcoming release of the next-gen fitness tracker. At least from the product page shared by the Chinese brand, it looks to be a much more significant update than last year’s Band 9. The key improvements will arrive in holistic tracking, with Huawei touting new sleep insights and an emotional wellbeing app that provides mood-related recommendations. The tracker has also received a design makeover. Huawei will launch the Band 10 in seven distinct colors…