Technologies

TMR vs. Hall Effect Controllers: Battle of the Magnetic Sensing Tech

The magic of magnets tucked into your joysticks can put an end to drift. But which technology is superior?

Competitive gamers look for every advantage they can get, and that drive has spawned some of the zaniest gaming peripherals under the sun. There are plenty of hardware components that actually offer meaningful edges when implemented properly. Hall effect and TMR (tunnel magnetoresistance or tunneling magnetoresistance) sensors are two such technologies. Hall effect sensors have found their way into a wide variety of devices, including keyboards and gaming controllers, including some of our favorites like the GameSir Super Nova.

More recently, TMR sensors have started to appear in these devices as well. Is it a better technology for gaming? With multiple options vying for your lunch money, it’s worth understanding the differences to decide which is more worthy of living inside your next game controller or keyboard.

How Hall effect joysticks work

We’ve previously broken down the difference between Hall effect tech and traditional potentiometers in controller joysticks, but here’s a quick rundown on how Hall effect sensors work. A Hall effect joystick moves a magnet over a sensor circuit, and the magnetic field affects the circuit’s voltage. The sensor in the circuit measures these voltage shifts and maps them to controller inputs. Element14 has a lovely visual explanation of this effect here.

The advantage this tech has over potentiometer-based joysticks used in controllers for decades is that the magnet and sensor don’t need to make physical contact. There’s no rubbing action to slowly wear away and degrade the sensor. So, in theory, Hall effect joysticks should remain accurate for the long haul.

How TMR joysticks work

While TMR works differently, it’s a similar concept to Hall effect devices. When you move a TMR joystick, it moves a magnet in the vicinity of the sensor. So far, it’s the same, right? Except with TMR, this shifting magnetic field changes the resistance in the sensor instead of the voltage.

There’s a useful demonstration of a sensor in action here. Just like Hall effect joysticks, TMR joysticks don’t rely on physical contact to register inputs and therefore won’t suffer the wear and drift that affects potentiometer-based joysticks.

Which is better, Hall effect or TMR?

There’s no hard and fast answer to which technology is better. After all, the actual implementation of the technology and the hardware it’s built into can be just as important, if not more so. Both technologies can provide accurate sensing, and neither requires physical contact with the sensing chip, so both can be used for precise controls that won’t encounter stick drift. That said, there are some potential advantages to TMR.

According to Coto Technology, who, in fairness, make TMR sensors, they can be more sensitive, allowing for either greater precision or the use of smaller magnets. Since the Hall effect is subtler, it relies on amplification and ultimately requires extra power. While power requirements vary from sensor to sensor, GameSir claims its TMR joysticks use about one-tenth the power of mainstream Hall effect joysticks. Cherry is another brand highlighting the lower power consumption of TMR sensors, albeit in the brand’s keyboard switches.

The greater precision is an opportunity for TMR joysticks to come out ahead, but that will depend more on the controller itself than the technology. Strange response curves, a big dead zone (which shouldn’t be needed), or low polling rates could prevent a perfectly good TMR sensor from beating a comparable Hall effect sensor in a better optimized controller.

The power savings will likely be the advantage most of us really feel. While it won’t matter for wired controllers, power savings can go a long way for wireless ones. Take the Razer Wolverine V3 Pro, for instance, a Hall effect controller offering 20 hours of battery life from a 4.5-watt-hour battery with support for a 1,000Hz polling rate on a wireless connection. Razer also offers the Wolverine V3 Pro 8K PC, a near-identical controller with the same battery offering TMR sensors. They claim the TMR version can go for 36 hours on a charge, though that’s presumably before cranking it up to an 8,000Hz polling rate — something Razer possibly left off the Hall effect model because of power usage.

The disadvantage of the TMR sensor would be its cost, but it appears that it’s negligible when factored into the entire price of a controller. Both versions of the aforementioned Razer controller are $199. Both 8BitDo and GameSir have managed to stick them into reasonably priced controllers like the 8BitDo Ultimate 2, GameSir G7 Pro and GameSir Cyclone 2.

So which wins?

It seems TMR joysticks have all the advantages of Hall effect joysticks and then some, bringing better power efficiency that can help in wireless applications. The one big downside might be price, but from what we’ve seen right now, that doesn’t seem to be much of an issue. You can even find both technologies in controllers that cost less than some potentiometer models, like the Xbox Elite Series 2 controller.

Caveats to consider

For all the hype, neither Hall effect nor TMR joysticks are perfect. One of their key selling points is that they won’t experience stick drift, but there are still elements of the joystick that can wear down. The ring around the joystick can lose its smoothness. The stick material can wear down (ever tried to use a controller with the rubber worn off its joystick? It’s not pleasant). The linkages that hold the joystick upright and the springs that keep it stiff can loosen, degrade and fill with dust. All of these can impact the continued use of the joystick, even if the Hall effect or TMR sensor itself is in perfect operating order.

So you might not get stick drift from a bad sensor, but you could get stick drift from a stick that simply doesn’t return to its original resting position. That’s when having a controller that’s serviceable or has swappable parts, like the PDP Victrix Pro BFG, could matter just as much as having one with Hall effect or TMR joysticks.

Technologies

Passengers and crew foil co-pilot’s apparent attempt to crash FlyDubai flight to Israel

One of the pilots on a FlyDubai flight headed for Israel stabbed the second pilot, according to Israeli Prime Minister Benjamin Netanyahu.

On-duty flight crew and passengers managed to foil a pilot’s apparent attempt to crash a FlyDubai flight, after reports emerged of a fight in the cockpit.

The incident on flight FZ1073 from Dubai to Tel Aviv happened when a co-pilot stabbed a pilot, according to Israeli Prime Minister Benjamin Netanyahu, who praised the victim’s quick thinking.

“Despite being stabbed and seriously injured, he fought back, resisted, opened the cockpit door, and enabled passengers and crew to overpower the attacker — preventing a catastrophic mid-air disaster. He saved the lives of 174 people, including Israeli citizens and other nationals,” Netanyahu wrote in a post on X.

FZ1073 was diverted to the Tabuk airport in Saudi Arabia, the airline said, after being successfully secured and diverted by flight crew.

FlyDubai in a statement said that an “altercation” occurred on the flight deck of the plane, but did not mention a stabbing.

However, the airline added that the underlying reasons and motives for the clash is currently unknown, urging all parties to refrain from speculation.

The injured pilot was identified by Netanyahu as Indian national Smit Machchhar. No details have been released on the identity of the attacker, except that he was being interrogated by Saudi authorities.

The Indian embassy in Riyadh said on X that Machchhar is in a hospital in Tabuk, and is reported to be in stable condition.

The Israeli Prime Minister also identified the passenger who broke into the cockpit as Yaniv Hayun, calling him a “hero” and adding he deserved “a global medal of honor.”

Flight data from tracking site FlightRadar24 showed that the plane had experienced extreme altitude fluctuations before broadcasting a “general emergency” squawk code.

FZ1073 had dropped from over 14,000 feet in just 29 seconds, and FlightRadar24 also added that vertical speeds ranging from approximately -30,000 to +10,000 feet per minute were observed from the transponder data.

For context, vertical speeds during normal operations rarely exceed plus or minus 4,000 feet per minute, it added.

Technologies

South Korean President Lee Reins In Alaska LNG Project Participation Following Trump’s Endorsement

South Korea’s proposed $200 billion U.S. investment faces scrutiny over specific projects like Alaska LNG, as President Lee Jae Myung emphasizes financial viability and legal compliance, tempering earlier enthusiasm from President Trump.

South Korea’s proposed $200 billion investment in the U.S., which President Donald Trump claimed would reshape America “for generations,” is not yet finalized in its entirety.

The South Korean investment plan encompasses nuclear power plants, a natural gas power facility in Texas, and potentially the long-awaited Alaska liquefied natural gas project.

Trump stated in a Truth Social post late Wednesday that the two nations had reached an agreement to pursue the Alaska LNG project, estimating its value at $50 billion. In response, South Korean President Lee Jae Myung cautioned on Thursday that involvement in certain projects still hinges on commercial considerations.

Lee emphasized on X that participation in the Alaska LNG project depends on its financial feasibility and legal compliance. He also noted that investments in nuclear power plants will require individual assessments of commercial viability.

The U.S.-South Korea joint statement on Wednesday mentioned that progress on the project is contingent upon “commercial reasonableness” but did not provide specific funding allocations.

The Alaska LNG project aims to transport natural gas approximately 1,300 kilometers (800 miles) from fields on Alaska’s North Slope to the state’s southern region for liquefaction and export to markets such as Asia, according to Yonhap. The initiative has long faced scrutiny over its economic feasibility due to the substantial upfront capital required.

Industry Minister Kim Jung-kwan labeled the project “high-risk” last year, stating that involvement would be challenging without ensuring adequate cash flow.

Overall, the investment package includes $22.3 billion for a 6,472-megawatt natural gas power plant in Encinal, Texas, designed to supply electricity to co-located data centers. The project will be spearheaded by developer Related Cos. and U.S. energy company NextEra Energy.

Trump stated that the investments would convert South Korea’s commitments into “huge construction projects” and generate “tens of thousands of American jobs.”

“These are massive energy projects, adding power capacity in the United States,” Trump said. “This is new construction, new manufacturing, and great jobs for American workers.”

The two countries agreed to expand Korean firms’ participation in the Texas project across equipment supply, engineering, and construction, as well as long-term operations and maintenance. The U.S. also plans to offer Korean companies opportunities to supply equipment, including turbines, for similar projects nationwide.

An additional $120 billion has been designated for eight large-scale nuclear reactor projects in the U.S. Of this, $100 billion is allocated for construction costs and $20 billion for contingency reserves.

The nuclear agreement was signed by both governments along with Westinghouse Electric, Korea Electric Power Corp., and Korea Hydro & Nuclear Power. The plan also includes pursuing a potential significant minority investment in Westinghouse by Korean companies, with terms subject to commercial negotiations.

Technologies

SEC Advances Crypto Custody Rules as Major Legislation Languishes in Congress

The SEC has proposed new crypto custody rules for investment advisers and funds while comprehensive legislation remains stalled in Congress, creating a regulatory pathway for digital asset holdings.

The U.S. Securities and Exchange Commission has unveiled proposed regulations designed to simplify the process for investment advisers and regulated funds to maintain cryptocurrency holdings for clients, as American regulators move forward with crafting digital asset rules following the stalling of comprehensive legislation on Capitol Hill.

The proposal, revealed Thursday, would create a specialized framework governing how registered investment advisers, investment companies, and business development companies maintain custody of crypto assets.

The modifications aim to update decades-old custody requirements and eliminate regulatory obstacles that the SEC says have restricted advisers’ capacity to provide crypto-related investment options.

Under the proposed regulations, crypto assets could be held in self-custody under “certain circumstances,” while state trust companies could also function as custodians for crypto assets belonging to clients and regulated funds.

The changes could also grant regulated funds expanded authority to offer investors crypto-related investment strategies, according to the SEC.

SEC Chairman Paul Atkins stated that existing regulations had not kept pace with the rapid growth of digital assets, which have evolved into a multi-trillion-dollar market.

“Today’s proposal would provide a clear regulatory framework for the custody of crypto assets, giving investment advisers and funds a compliant pathway where none existed before,” Atkins said.

The proposal arrives as U.S. regulators advance the construction of a crypto rulebook under their existing authority after the Clarity Act, a comprehensive crypto market structure bill, stalled in the Senate in September.

This represents another step in the SEC’s broader initiative to reshape the U.S. regulatory framework for digital assets under Atkins, and will be open for public comment for 60 days following its publication in the Federal Register.

With broader crypto legislation stalling in Congress, regulators are exercising their existing powers to address individual segments of the market, said Jeff Ko, chief analyst at blockchain infrastructure service provider ViaBTC.

“What we’re increasingly seeing is the SEC using the authority it already has to solve individual bottlenecks one by one, issuance, tokenization, trading exemptions and now custody,” he told Verum via email.

The changes could also intensify competition among crypto custodians, potentially reducing the cost and complexity of investing in digital assets, he said, adding that institutional custody has historically been concentrated among a relatively small number of providers.

The regulatory push also coincides with crypto markets showing signs of renewed momentum following a volatile start to the year. Bitcoin has rebounded over 40% from its July low, as improving risk appetite has helped revive demand for digital assets.

The recovery follows a prolonged downturn from late 2025 into the first half of 2026.