The Powerbeats 4 comes with an H1 chip that we first saw in the second-generation AirPods. The chip allows for improved battery life, lower latency, and even lets you summon Siri by saying the magic words "Hey Siri".
According to the image shared on Twitter, the Powerbeats 4 comes with a price tag of $149 (approximately Rs. 11,000), making them $50 cheaper than the Powerbeats 3. And since Walmart has already put them on sale, we can expect an official announcement soon.