A Digital Compressed Sensing-Based Energy-Efficient Single-Spot Bluetooth ECG Node

Table 2

Comparison of the proposed node with commercial ones.

	Proposed node	Shimmer2	ZMP ECG2	Zio Patch [31]
Size (mm)	40 (D) × 15(H)	53 × 32 × 23	44 × 41 × 9.34	123 × 53 × 10.7
Weight (g)	30	32	15	34
Current
OS + sampling	0.23 mA	0.1 mA (only OS)	~1.35 mA	—
Wireless	1.98 mA at 200 Hz	~20 mA	~3.00 mA	No radio
Deep sleep	5.2 μA	0.14 mA	~4 μA	—
Lifetime	116 h at 3 V 230 mAh	~24 h at 3.7 V 450 mAh	72 h at 3.3 V 230 mAh	<14 day
Location	Single-spot	Traditional three lead	Single-spot	Single-spot
Price (RMB)	<400 (hardware cost)	>2800	>20000	—

Shimmer2: http://www.shimmersensing.com/; ZMP ECG2: https://www.zmp.co.jp; and Zio Patch monitor: http://irhythmtech.com/.