Green Heartbeat Line — Black, Calm

1680 × 1050

Blue Heartbeat Line — Black, Calm, Minimalist

1280 × 1024

Blue Heartbeat Line — Black, Calm

1600 × 1200

Green Heartbeat Line — Black, Calm, Minimalist

1680 × 1050

blue heartbeat line

1680 × 1050

Red Heartbeat Line — Neutral

1920 × 1080

Green Heartbeat Line — Black, Neutral

2880 × 1800

Blue Heartbeat Line — Minimalist

1280 × 1024

Heart Rate Monitor Line — Red, Dramatic

1680 × 1050

Black Curved Line on Gray

1920 × 1200

rainbow line on black

1920 × 1200

White Wavy Line

1600 × 900