Is the AW 6's SpO2 sensor used at all to measure sleep tracking? I've been switching between an aluminum S4 and a stainless S6 but I'm not sure I'm seeing any difference in how sleep is measured.
If not, I'd likely opt for the S4 for sleep tracking since it's a bit lighter and less useful during the day without AOD. If there's some benefit to having SpO2 measured during sleep, then I'd drop back to the S4 during the day whenever the S6 needs charging.
If not, I'd likely opt for the S4 for sleep tracking since it's a bit lighter and less useful during the day without AOD. If there's some benefit to having SpO2 measured during sleep, then I'd drop back to the S4 during the day whenever the S6 needs charging.