The cable is 1m long. Incidentally, I recommend using this cable and not an ordinary charging cable. The cable supplied has a larger cross-section and therefore a lower resistance, and all signal paths are present, which is not the case with most charging cables. When fast charging, the charge monitoring is absolutely important in order not to overload the battery.
In the past, the devices were screwed together with seals and you could simply change the battery; today's devices are only glued together and are usually no longer leak-proof after opening. The battery is a consumable item and loses an average of 10% per year, which means that devices worth more than CHF 1,000 are often thrown away, which are still absolutely functional, just because the battery (material value 20.-!) has become weak.
To ensure that the battery lasts as long as possible, I recommend operating the battery between 20% and 80%. The internal voltages are at their highest at 0% and 100%, so the service life suffers considerably.
