Price is less expensive than its closest competitors, which include the Mindray M9, Philips CX50, and GE Vivid iq. When compared to other affordable ultrasound machines, the SonoBook’s cardiac imaging was quite a bit better than the Chison EBit 60, Mindray M7, GE Vivid e, GE Vivid i, and SonoScape S8 Expert.