Here we have the inner workings of the Tiny T1—all of them. It's just one board, with (nearly) everything soldered to it:

Speaker

Microphone capsule

High tech Bluetooth antenna (it's a wire)

"Nano" SIM slot, ironically hogging nearly half the board

Two mysterious pogo pins, which are accessible from outside—possibly for charging? Accessory port? A tiny taser?

200 mAh 0.74 Wh battery (for comparison, the ENV3 has 3.5 Wh, while the Galaxy S9+ weighs in at 13.48 Wh)

While the S9+ battery packs over eighteen times the capacity, we doubt that its standby scales linearly to the Tiny T1's three-day rating.