Tech Radar

• Samsung may be testing the giant phone battery upgrade of your dreams — but don't expect much of a boost for the Galaxy S26 Ultra

  Samsung is continuing to work on silicon-carbon battery tech, but it doesn't appear to be ready yet.

• Wish your streaming music sounded more analog? Someone made a Bluetooth-to-cassette live converter, and it's very cool

  YouTuber Julius Makes created a gadget that receives Bluetooth, writes it live to cassette tape, and then plays it back immediately, because why not?

• Scam season is here, keep yourself safe with these tips

  SMS scams are on the rise but there are ways to easily spot them.

• Project Silica rival plans to launch 500GB Proof-of-concept medium in 2026 — but questions remain about speed, durability, and cost

  Optera develops 500GB glass-based optical storage using photoluminescence, building on earlier nanoparticle experiments, while technical and cost uncertainties persist.

• Betamax vs VHS: European startup competes with Cerabyte to be first Exabyte-scale zero-power archival data storage system — but who will win?

  European startup Ewigbyte unveils exabyte-scale zero-power archival storage, using modular glass media to compete with Cerabyte’s ceramic solutions.