In Hackney and Haringey, officers made 15 arrests connected to the operation, including a 15-year-old boy on an illegal electric bike who was found with a large knife and £1,000 cash.
Other operations included arresting two e-bike thieves, who were later sentenced to a combined five years, for phone thefts.
Alongside that, they executed a warrant at a second-hand phone shop where they suspected stolen mobiles were.
Commander Owain Richards, who is leading the Met’s response to phone thefts, said: “We are seeing phone thefts on an industrial scale, fuelled by criminals making millions by being able to easily sell on stolen devices either here or abroad.
“By intensifying our efforts we’re catching more perpetrators and protecting people from having their phone stolen in the capital.
“But we need help from partners and industry to do more.
“That is why we’re working with other agencies and government to tackle the organised criminality driving this trade and calling on tech companies to make stolen phones unusable.”
Kaya Comer-Schwartz, London’s Deputy Mayor for Policing and Crime, said personal robbery was down 13% on the same period last year.