A $10 Plastic Speaker is the Most Durable Revenue Line in Indian Digital Payments

India's digital payment platforms process trillions of dollars a year through UPI, the government-built real-time payments rail that handles more than 90% of all payment transactions in the country, but one of their largest net revenue line items is not a payment product at all: it's a cheap plastic speaker that sits on a shopkeeper's counter and reads out incoming payments aloud.

The roughly 23 million soundboxes deployed across India earn about $220 million a year in rental fees, more than every explicitly UPI-linked revenue line in the ecosystem combined, according to estimates from Bernstein. Each device costs $7-12 to manufacture and earns its platform $7-10 a year in rent. A story adds: PhonePe processes about 48% of all UPI transactions in India. Its net payment processing revenue in H1 FY26 was about $83 million. Its device revenue was about $34 million. Running nearly half of India's real-time payment infrastructure earns PhonePe only 2.4 times what it makes from renting speakers to shopkeepers.

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