Start with who actually sells the policy
Health cover reaches you through one of two kinds of company. A broker chooses from insurers on your behalf and stays in the middle, while a comparison site hands you a set of quotes and steps aside. Oney Préstamos ES, Good Sam Insurance Agency and Doutor Financas all act as brokers, broker at Oney Préstamos ES, broker at Good Sam Insurance Agency and broker at Doutor Financas. bonus.ch and ComparaJa both run as comparison sites, comparison site and comparison site. That choice decides who answers when a claim stalls and what you can hold the seller to.
Trading history and the rulebook you sit under
Trading history is the next quick check. Good Sam Insurance Agency has been at it since 1966, bonus.ch since 2004, ComparaJa since 2015 and Doutor Financas since 2014. A long history promises nothing about a claims record, but it does mean there is a record to read.
Country of registration tells you which rulebook the contract sits under. Oney Préstamos ES is registered in ES, bonus.ch in CH, and ComparaJa and Doutor Financas both in PT. Match that against where you live and where you would be treated, because cover written under one rulebook can be awkward to use under another. Oney Préstamos ES also sets a simple entry condition: Of legal age only.
Put the cost on a single page
Read the spread before any single figure. Across the health policies in the rankings, the starting premium spans €0 to €1,000. A gap that wide says more about cover level than about the quality of the seller.
Then take each entry as written. The listed starting premium at Oney Préstamos ES is €1,000. bonus.ch shows CHF 0 and ComparaJa shows €0, so neither advertises a headline rate and the quote is built from your own details.
Payment rhythm can weigh as much as the amount. Oney Préstamos ES lists monthly pricing, and so does ComparaJa with monthly. Both answer yes when asked about monthly payments. Ask for the annual figure next to the monthly one, because monthly paying looks gentle in a quiet month and heavier across a year of small claims.
Check what the policy actually pays for
Cover level is where health policies separate most, and it is often the number quoted worst. Oney Préstamos ES publishes a cover limit of Up to 45,000 EUR on its health offering. Treat that as the top of the scale for a claim, then read the wording for whether the limit applies per person, per stay or per year.
Watch for limits that belong to another product. The cover limit ComparaJa publishes covers car third-party liability minimums rather than health sums, so it tells you nothing about the health policy you are shopping for.
Then look at the lines each company sells, because health cover often sits beside a product that changes how you use it. Oney Préstamos ES lists health, life and gadget. Good Sam Insurance Agency runs a wider book, auto, home and renters. bonus.ch lists auto, home and life, and ComparaJa adds dental to auto, life and health. Doutor Financas pairs health with income protection in auto, home and life, which matters when the worry is the wage that stops while you recover.
Look for the entity and the regulator behind the money
Before comparing anything else, find out who is legally responsible for the claim. Oney Préstamos ES contracts as Oney Servicios Financieros E.F.C., S.A.U. bonus.ch contracts as bonus.ch SA. ComparaJa's mediation arm trades under a Compeugroup name, registered in Portugal as a sole trader insurance mediator. A name on an advert is not the entity that owes you the payout.
Registration numbers let you check that entity with the right authority. Oney Préstamos ES lists a central bank registration of 8.814. bonus.ch lists a financial regulator licence of F01435140. ComparaJa lists an insurance supervisor registration of 417449516 and a central bank registration of 0000375. Make sure the company named on your policy matches the company on the register.
Trace the claim route before you sign
The moment that matters is the claim. Oney Préstamos ES lists help centre as its claims channel, so the first step in a hospitalisation claim sits with a help centre rather than a person on a line. Doutor Financas lists client support area and phone, which puts a client support area and a phone line on the same route.
General support is a separate question from claims support. Oney Préstamos ES offers phone, chat and help centre. bonus.ch offers phone and email, and ComparaJa offers phone and email. A provider who answers questions by email can still be excellent, but the claims route is the one you would need at short notice, so write it down before you sign.
Build a shortlist you can act on
Lay the answers side by side in this order: who sells it, which entity owes the payout, what the cover limit is, what it costs each month, and who answers a claim. The health insurance rankings hold cover and price signals in one view so you can cut a shortlist before reading the detail.
Then read the full entry for each name left on the list. The bonus.ch review covers the comparison site model and its starting premium, the ComparaJa review covers the Portuguese quoting flow, the Doutor Financas review covers the broker route and its claims channels, the Good Sam Insurance Agency review covers a trading history going back to 1966, and the Oney Préstamos ES review covers how health cover is arranged as a broker.