Mid-August, 10 phones are shipping. Prices in China are as low as US$580 (Oppo) but the price drops haven't yet spread to Europe or the U.S. Most phones are in good supply. The only available source with performance comparison is unreliable. The components used are very similar, so large differences should be rare. The Oppo is currently the cheapest but look at the quality of the 10x hybrid telephoto lens. Chart below.