What would probably be more useful is some sort of injury heat-map, because that would give you functional information. It wouldn't be terribly useful, though, because you should be able to tell when you're fucked up. The health-as-a-number thing could even be emulated to some degree if it weighted possible injuries based on location, severity, and probability, as well as account for more traditional stuff like heart-rate, respiration, etc., and give you a rough number to represent your condition. Like, if you fall and break your leg, it could have motion sensors that register high shock force, some sort of contact microphone that registers a snap or crunch or something of the likes, maybe even a limb-tracking system to monitor how you're moving, and make reasonablyВ reliable judgements. Medical Monitoring: While certain monitoring systems are obvious, it could conceivably detect bone fractures, lacerations, and other big injuries with some indirect sensors and analysis. Oxygen: We'd need a big tank for anything major, but the suit doesn't actually last that long under water, so we could manage that. HUD: We could have a far more impressive HUD than the one in game. Computer: If there's any technology we, as a species, can say we're pretty damn good at sticking inside of things, it's computers. It's one of the sensors in the Arducorder Mini. Geiger Counter: This is about the size of your thumb. Hell, we could cover it in laser stun weapons if we wanted. Radiation shielding especially is generally quite bulky and heavy, and I'm not sure if a functional amount of it could be integrated into such a streamlined suit with all of the other armor and systems. If he didВ wear a helmet, it would be a bit more reasonable, but I'm not qualified to say if it's strictly possible. We haveВ suits (HAZMAT and otherwise) that can protect against contamination, radiation, extreme temperature, etc., and they can do that well, but Gordon doesn't wear a helmet. Its hazardous environment protection is along the same lines. The closest we could get to what the HEV suit uses would be a system of Kevlar with a metal weave, titanium plating, and maybe some carbon/graphene components if the definition of 'current' stretches that far. It could be builtВ incredibly resilient, but our only real 'reactive armor' technologies are used in vehicles (you should read up on them), and they're consumable. The regenerative high-impact reactive armor, specifically the regenerative part, is not currently possible. Really, there are only two parts of the HEV suit (besides obviously oversimplified gameplay things) that we couldn't manage with current technology: The HEV suit can detect a fracture (presumably a bone fracture) you think it would be possible to do so? (iDon't, but I am not a doctor or anything) So a protection layer that would automatically seal a wound when it gets punctured? I like that idea. We have Blood pressure, Heart rate, Inhalation rate, what else can we measure externally? You could also employ some sort of elasto-plastic type layers that automatically 'seal' a puncture wound (eg: impalement or GSW - gun shot wound).ДЄrmour could be integrated, and there are fairly advanced prototype armour suits in development. You could automatically administer pain medication, which could help the user continue to function for a limited time despite a serious wound. You could not 'treat' wounds automatically using a suit. There's no such thing as a 'health meter' though, so that is purely fiction for simple gameplay mechanics. If an integrated EEG was used, you could monitor brain waves.

A suit that collects and monitors vitals is easily accomplished today - but it can only monitor limited metrics, such as heart rate, blood pressure, inhalation rate, etc.

Hev suit real life