I feel like that really depends on how you view futuristic.
I think things with colored e-ink displays, USB C chargeable AA batteries, handheld emulators, 2230 NVMe drives, and USB C power portable displays are really cool but I feel like their availability these days has made them lose a bit of their futuristic luster. They would have blown my mind when I was a kid.
More niche products like Meshtastic and ESP32 Marauder devices are things I view as futuristic (and can be found for under $100).
I feel like that really depends on how you view futuristic.
I think things with colored e-ink displays, USB C chargeable AA batteries, handheld emulators, 2230 NVMe drives, and USB C power portable displays are really cool but I feel like their availability these days has made them lose a bit of their futuristic luster. They would have blown my mind when I was a kid.
More niche products like Meshtastic and ESP32 Marauder devices are things I view as futuristic (and can be found for under $100).