Some others are advertising smaller blimps and, at the same time, higher altitudes. Physics is physics. Helium is helium. Each square foot or square meter of helium can only lift a certain amount at a certain base altitude. The higher the base altitude, the less it can lift.
Temperature also effects the lifting capability of helium.
The pilot balloon must be inflated and deflated on-site wasting time and money. All Tern Style altitude specifications reflect real-world results with the complete ShotBot system, including a zoom lens, and a 35mm camera. Tern Style's ShotBlimp is made either by BlimpWorks or Aerostar. Both companies have strict policies regarding customer service and quality control. Tern Style is proud to be a full-line dealer for both companies.