Macclesfield-born Artingstall, a gunner in the British Army and a bronze medallist at the 2019 World Championships, proved too classy for her Botswanan opponent, who struggled with her headguard on several occasions.
Artingstall was given the nod by all five judges in every round, with four scores of 30-27 and one of 30-26, as she eased into the last-16 of the 57kg category at the Ryogoku Kokugikan in Tokyo.
"It's not my best performance at all, I wouldn't even rate it over a six (out of 10), but I (have) just done what I had to do," said Artingstall after she booked a second round clash against third seed Jucielen Romeu of Brazil.
"Seeds mean nothing to me, it's just a number at the end of the day. I have never come across her myself so I don't know what to expect. But as long as I am in there on my A game, I am a nightmare for anyone to beat.
"I'll warm up throughout the tournament, and you'll definitely see better performances from me."
Peter McGrail was unable to follow in her footsteps as the Merseysider fell to a unanimous decision defeat against veteran Thai Chatchai-Decha Butdee - a boxer who also competed at London 2012 and Rio 2016.