The biggest issue with smart meters is the cost. The Open Smart meter can be manufactured for about 25 USD in Nigeria (that is the cost for one meter, not ordering in bulk). We estimate that if ordering in bulk, the price could be less than 20 USD. Though your manufacturing costs may be different, this is what the cost that First Electric was able to come to in 2022.
The Open Smart Meter also offers more functionality, like being able to see an historic view on how customers are topping up and how much power has been used.