20. March 201819. April 2018 Ragnar Heil Buch von Miriam Meckel “Mein Kopf gehört mir: Eine Reise durch die schöne neue Welt des Brainhacking”
30. October 201719. April 2018 Ragnar Heil Review + Unboxing Michael Kors Smartwatch – Access Bradshaw (Model 2017 Android Wear 2.0)
3. September 201719. April 2018 Ragnar Heil IFA 2017: my Product Highlights of the Consumer Electronics Fair
24. June 20171. December 2020 Ragnar Heil Review: 4 weeks with wireless InEarBuds Jabra Elite Sport (Headphones)
18. December 201619. April 2018 Ragnar Heil Review and comparison of Fitness Tracker Garmin HR+ and Xiaomi Mi Band 2
21. November 201618. October 2017 Ragnar Heil Review of Jabra Sport Pulse – a wireless Sport Headset which tracks heartbeat
15. October 201619. April 2018 Ragnar Heil Review of iHealth Wave Fitness, Sleep and Swimming Tracker
3. July 201619. April 2018 Ragnar Heil Review of Spire, a wellness gadget which tracks Stress and Breath
21. November 201515. April 2017 Ragnar Heil Meditation and Brainwaves: Review of Neurosky MindWave Mobile Headset