Smartwatch Battery Life vs. Connectivity: A Growing Trade-off
Table of Contents
The push for eSIM integration in smartwatches is raising questions about battery life adn whether constant connectivity is truly necessary for most users.
A clear trend is emerging in the smartwatch market: major manufacturers are rapidly incorporating eSIM technology and, by extension, data connectivity into their devices.While offering increased functionality, this shift is coming at a cost – substantially reduced battery life. The appeal of eSIMs is undeniable. Thay allow smartwatches to function independently of a paired smartphone, enabling calls, messages, and data access directly on the wrist. However, this convenience comes with a trade-off. “From 10 – 14 days [of battery life] you are brought down to earth to 2 – 3 – 4 days in the more intensive use scenario,” one user noted, highlighting the ample impact of always-on connectivity.
Garmin’s Alternative Approach: LTE via inReach
The Garmin Fenix 8 Pro presents a slightly different model.Rather than a conventional eSIM activated through a telecom operator, Garmin offers LTE connectivity through its inReach subscription service. Plans range from €9.99 (Enabled) to €59.99 (premium), covering 35 countries including Romania. Importantly,users aren’t required to activate LTE.”however, you can choose not to use the LTE part and the autonomy is great – up to 19 days depending on the usage scenario,” a key advantage for those prioritizing longevity.
The Battery Life Dilemma
The core issue revolves around power consumption. The constant search for and maintainance of a cellular connection drains battery reserves far more quickly than traditional smartwatch functions.This is particularly noticeable when compared to older generations of smartwatches. While smartphone battery life is improving – with many 2025 models offering at least a day and a half of use – smartwatches appear to be moving in the opposite direction.
“I alternately use a Huawei Watch Ultimate and a Fenix 7 Pro, and the new generations…integrate eSIM,” a user shared. “There’s nothing wrong with that, it’s just that…you get a big concession on the autonomy side.”
Is Mobile Data on Your Wrist Truly Necessary?
The fundamental question is whether the benefits of mobile data on a smartwatch outweigh the drawbacks. Many users find themselves questioning the need for calls and messages on their wrist, especially during activities like swimming or working out. Moreover, the convenience is frequently enough redundant when a smartphone is readily available. “I don’t necessarily like to have calls and messages on my watch…and when I’m walking around the city, I have my phone with me,” one individual explained.
A Call for Balance
There’s a growing sentiment that huawei and Garmin should continue to offer high-end smartwatches without eSIMs, prioritizing long battery life as a key differentiator against Apple and Samsung. While acknowledging the pressure to match competitors, some believe a dedicated segment of the market values longevity above all else. “It’s a big deal to go away for a few days on vacation or on a business trip, and the watch charger should not be a stress to have in your bag, backpack, etc.”
The current situation with Apple and Samsung watches, offering only 1-2 days of battery life, underscores this concern.Users often find themselves tethered to charging stands, negating the freedom a smartwatch is supposed to provide.
Ultimately, the optimal strategy remains unclear. While uniformity at the top level is understandable, the most criticized aspect of leading smartwatches remains their limited battery life. The debate continues, and the comments section is open for further discussion. Notably, contactless payments on Garmin models, including the Fenix 7 Pro, function seamlessly even without an active eSIM.
