Quantity   Component name
1 × Qduino Mini V2 (Sparkfun) Cost: $29.95
1 × Adafruit 500mah LiPo Cost: $7.95
1 × DS3231 RTC Cost: $1.39
1 × Pololu vibrating motor Cost: $4
4 × Tactile buttons Cost: $2
1 × Freetronics OLED 128X128 screen Cost: $41.30
1 × Wrist watch strap (https://www.strapify.com.au/collections/rubber-straps/products/tyreproof) Cost: $12
1 × Sparkfun Particle Sensor Breakout -- MAX30105 Cost: $12.95