Resolves YES if a top 5 smartphone brand by market share is available on sale with a crystal material discovered as part of DeepMind’s crystal structure work in any part of it's composition, before the end of December 2028.
Top 5 brands by market share are currently Samsung, Apple, Xiaomi, Oppo and Vivo, but I will re-review this when relevant. This restriction is to rule out hobbyists or other small-run shops pushing out something that may technically meet the criteria but is not widely available to verify room material claims.
The phone must be on sale, not just up for preorder, and in shops and not just a paper launch.
Crystal material must be a component of the phone and not the manufacturing process.
Close date is set so I don’t have to resolve immediately over New Year.