Quantity   Component name
1 × 4G module https://www.amazon.com/dp/B08ZSSCYDD?psc=1&ref=ppx_yo2ov_dt_b_product_details
1 × Raspberry PI 4 compute module https://www.amazon.com/dp/B0CHNB8QKT?psc=1&ref=ppx_yo2ov_dt_b_product_details
1 × Raspberry PI 4 carrier board for development https://www.amazon.com/dp/B092D8T71P?ref=ppx_yo2ov_dt_b_product_details&th=1
1 × 5 inch touch display https://www.amazon.com/gp/product/B013JECYF2/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
1 × Raspberry PI Zero 2W https://www.amazon.com/dp/B0CCRP85TR?psc=1&ref=ppx_yo2ov_dt_b_product_details
4 × LI-ion battery https://www.amazon.com/gp/product/B091YMWC72/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
1 × USB hub Modified amazon essentials 4 port hub. I made it a powered hub
1 × Li ion battery charger https://www.amazon.com/dp/B09C3PKK8H?smid=A3S807LE0L63AP&ref_=chk_typ_imgToDp&th=1
1 × Buck converter, 5vdc, USB output https://www.amazon.com/gp/product/B01NALDSJ0/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
1 × Voltage variable power brick, 120w https://www.amazon.com/gp/product/B0C4Y2ZFG6/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
1 × 240x240 display https://www.amazon.com/gp/product/B09N2NC7NS/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
1 × USB audio adapter https://www.amazon.com/gp/product/B01N905VOY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1