(By Cate Cadell, Reuters) — Chinese smartphone maker Xiaomi Inc reported its second-quarter revenue surged 68.3 percent, as strong smartphone sales complemented a jump in revenue at its smaller, but fast-growing connected devices business.

Xiaomi, whose cheap smartphones have become very popular in price-conscious countries such as India, said on Wednesday its revenue from overseas markets more than doubled from the year-ago period. This is the first set of results released by Xiaomi since it raised $4.72 billion in a high-profile initial public offering in June, valuing the firm at about $54 billion, almost half of earlier industry estimates of $100 billion.

The going has not been smooth for Xiaomi as a listed company, however. Its Hong Kong-listed shares have fallen by around a fifth from its peak a month ago on concerns about Xiaomi’s valuation and trading accessibility for mainland Chinese investors.

The results are likely to assuage concerns about the company’s operations.

Revenue for the three months ended June 30 rose to 45.24 billion yuan ($6.58 billion) from 26.88 billion yuan, the company said in a statement.

It posted a net profit of 14.63 billion yuan for the period compared to a net loss of 11.97 billion yuan in the year-ago period. The company’s international revenue was 16.4 billion yuan in the quarter, accounting for 36.3 percent of total revenue. Sales of internet-connected devices, including smart TVs, also grew rapidly.

Xiaomi generated 70 percent of its revenue from selling its popular and mostly cheap smartphones last year. But the margins on its phones, which run on an…