AI-Generated Summary

The smartphone available on Amazon for $40 is the cheapest option, but it requires assembly, giving it a sturdy and hefty feel that belies its low price. The affordability is primarily due to a partnership with a specific carrier operated by the company, which necessitates signing up for their service. While the phone’s build quality feels premium and doesn’t seem like a $40 device, the cost-saving is tied to this carrier requirement. This makes it a budget-friendly choice for those willing to assemble the phone and commit to the associated carrier plan, offering decent value for the price.