Garmin Instinct 2X Solar – Perovskite Solar Panel upgrade? Defect fix? or Tweak?
If you’ve recently examined the Garmin Instinct 2X Solar, you might have noticed an unannounced change in colour to its solar panels. Unlike the reddish hue of earlier models, the panels now appear green, as reported in September by u/8887373 on the Garmin forums. This colour change raises the question: Is it a silent hardware upgrade or a manufacturing issue?
Manufacturing Tweak or Solar Breakthrough?
The colour change is likely due to a deliberate alteration in the panel materials, potentially affecting absorption and yield properties. While less likely, the possibility of new solar technology—specifically perovskite—cannot be entirely ruled out.
Perovskite solar cells (PSC) are a promising development, known for their potentially higher efficiency compared to silicon-based cells. Their chemical composition can be adjusted to match specific light conditions, a possible explanation for the green hue observed on the Instinct 2X Solar.
Perovskite: A Game-Changer?
Current solar panel power conversion efficiency (PCE) is generally low, around 10-15%. Perovskite materials offer several advantages, including flexibility, lower production costs, and a broader light absorption spectrum, which, in line with experimental results, could boost PCE to 25% later this decade.
How Perovskite Could Enhance the Instinct 2X Solar
If Garmin has indeed adopted perovskite-based solar cells, it could mark a significant advancement in solar-charging wearables. Even if the initial performance is similar to previous models, future generations of Instinct Solar and Fenix Solar will benefit from substantial gains as the consumer-grade technology is tweaked to perform similarly to those in lab conditions.
Upgrade or Cosmetic Change?
While a Solar Panel Tech upgrade is possible, the colour change is much more likely to result from a minor tweak, such as a coating alteration to improve light absorption. Any improvements to performance today are likely to be minimal.
Even in the longer term, I am not convinced that Garmin needs to improve further battery longevity to already good performance levels. As solid-state batteries and microLED technologies come to Garmin in the next few years, these might give easier battery performance gains than perovskite solar tech promised. Indeed, Garmin has already innovated to improve charging performance with the solar panels on the Enduro 3 and Fenix 8, but they do not have the same screen hue we see here.
What do you think?
Further reading: Garmin fenix 8 microLED leaked a second time.
Last Updated on 10 April 2026 by the5krunner
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tfk is the founder and author of the5krunner, an independent endurance sports technology publication. With 20 years of hands-on testing of GPS watches and wearables, and competing in triathlons at an international age-group level, tfk provides in-depth expert analysis of fitness technology for serious athletes and endurance sport competitors. ID
New Fenix 8 and Enduro 3 have blackish panels. Is it just cosmetic change or thez actually perform better that is the question… They now have bigger solar area exposed due to thinner bezel… Speculations speculations.
Actually back in 2022 when F7 came out there were multiple threads on Garmin forums showing differences between two Fenixes which had reddish and greenish panels around the watch face so I wouldn’t get too excited 😉
Hello from Eastern Europe, I bought an Instinct 2x from a reseller in March and it has a dark/dark gray display instead of a reddish one. I thought it might be a defect or a fake, but then I saw an Instinct 3 Solar in person and the panel color is the same looking.