Amazon.in: Buy Logitech G604 Light Speed, Bluetooth Hero 25K DPI Sensor, 15 Programmable Controls, Up to 240-Hr Battery Life, Dual Wireless Gaming Mouse - Black Online at Low Prices in India
MM720 next to a G9X for those still searching : r/MouseReview
中国ロジクールのゲーミングマウス保証事情(G9x→G502) | ヲチモノ
A Mouse In the Same Vein As The Old Logitech G9x : r/MouseReview