What would be the best between the two aircraft here? Well, it is the F-35 that beats the Saab JAS 39 Gripen. If you take the Saab JAS 39 Gripen, it is most suitable for the air forces. The price of it is also much lower. The amount one should spend to buy the Saab JAS 39 Gripen is less and the amount to spend on its maintenance cost is also less. The sensor suite and integrated weapons, which comes in this aircraft are going to make it more suitable for war purposes.
If you take the Lockheed Martin F 35, you would see that it is going to do the same things that the Saab JAS 39 Gripen could do. It is actually going to do “vertical landings and take-off” the so called “VTOL” and could be noticed as carrier-capable.
However, nations would find trouble when it comes to the maintenance costs of the aircraft since it is too high. Lockheed Martin F-35 could be used at the front during wars. It could be used to defend from enemies. Many would like to have their aircraft replaced with the Lockheed Martin F-35 but would it be really productive is a question. Lockheed Martin F-35 is speedy and get its victim down just in one shot.
Further it comes with a 0,00143-0,006 m2 frontal RCS. And the missile that it emits could cover a range of 180 km. It would be possible to detect it at 52-74 km, within 120Ds half-range. Its RCS of 0,25 m2 will get detected at 190 km, and its speed ranges from 0,95 or 206 seconds whereas the Saab JAS 39 Gripen would be ready at a range of 160 km, and could be detected within 25 km. If you are ready for an attack, having a combination of both types of aircraft would be better. If you are going just to have only one of these types, then you are going to end up in having a bad day among your attackers.
Gripen E is the best fighter jet, and it has the best cross radar section when compared to other jet fighters. The Gripen has fancy sensors. The Lockheed Martin F-35 is a semi-robotic jet. For Europeans, the best would be Gripen. The Gripen is the cheapest fighter jet worldwide.
There are positives as well as negatives of these aircrafts. Saab JAS 39 Gripen is affordable with its low costs and its small in size. The Lockheed Martin F 35 is suitable to use in the air force, Navy and the Marine corps. It is a stealth aircraft. It has better sensors and carries higher weapon load when compared to the Saab JAS 39 Gripen. These characteristics are what makes the two aircraft differ from each other. Therefore, the conclusion is that both could be used for the purposes of war. There is nothing to point out, as there is nothing wrong with the two.