Invicta are a premium level offering and they come with a 7-year warranty. They are built to higher specifications, including an engineered BMS to ensure extra protection against overcharge, and higher level of independent certifications (IEC 62619 and IEC 62133 certified) meaning they are suitable for commercial and industrial level use if required. In short; Invicta can handle more rigorous use / conditions and are designed to do so. We find RV customers with larger premium caravans that travel frequently and for prolonged periods like the Invicta product. Invicta also has a much larger range, including some slimline options.
Zeal are an entry level lithium product, with a 3-year warranty. The BMS is more basic and is not designed to handle commercial grade application. Zeal is quality budget friendly recreational option, meant for the everyday caravan/RV owner. Currently Zeal have only two sizes: 100Ah and 200Ah.
The Invicta batteries do come equipped with in built blue tooth monitoring, whereas the basic BMS in the Zeal battery is not blue tooth enabled. We often see customers use the extra savings to purchase an external Bluetooth enabled battery monitor like the Victron BMV-712.