MT5 vs MT4: The Honest Truth After 12 Years of Trading

Most people think MT5 is just MT4 with a fresh coat of paint. That's a dangerous assumption. I learned this the hard way back in 2016. I switched my main account to MT5 because it was 'newer,' assuming all my strategies would just work better. They didn't. The first trade I placed felt off. The execution was lightning fast, sure, but my old hedging technique - opening opposing positions on the same pair - was blocked. The platform literally wouldn't let me do it. That cost me a potential $1,200 adjustment on a EUR/USD trade that went against me. I had to scramble to manage it a different way.

The fundamental difference is architectural. MT4 was built for the retail forex market of the 2000s. It's a specialist. MT5 was built as a multi-asset platform from the ground up. It's designed to handle stocks, futures, and forex all at once. Think of it like this: MT4 is a dedicated sports car for the forex track. MT5 is an all-terrain vehicle. If you only ever drive on the track, the sports car feels more natural. But if you need to handle different terrains, you need the ATV.

This design choice affects everything: the order accounting system, the way indicators are calculated, even the way timeframes are displayed. It's why an Expert Advisor (EA) written for MT4 won't run on MT5 without a significant rewrite. They speak different languages.

This is where MT5 has a clear, technical advantage, but it's not always what you think. The raw engine is faster. Backtesting complex EAs on MT5 can be up to 10x quicker because it can use all your CPU cores. MT4 is mostly single-threaded. For a scalper, that execution speed is tangible.

I remember a specific scalp on GBP/JPY during the London open. On MT4, my market order had a requote. On MT5, using the same broker (IC Markets review), it was instant. That difference was about 1.5 pips, or roughly $15 on my 1-lot trade. Over hundreds of trades, that adds up to real money lost to slippage and requotes.

The Hedging Limitation

But here's the catch for forex traders. MT5 uses a netting position accounting system by default. This means you can only have one position per symbol. You can't buy and sell the same currency pair simultaneously to hedge. Some brokers offer a 'hedging mode' for MT5, but it's a workaround on a system not designed for it. MT4 uses a hedging system, allowing multiple opposite positions. This is crucial for certain risk management styles. If your strategy relies on locking in profits with a hedge or running a grid, MT4's system is more intuitive. For pure directional trading on a single asset, MT5's netting is cleaner and faster.

Beyond the engine, the daily tools matter. MT5 has more built-in technical indicators (38 vs. 30 in MT4) and more timeframes (21 vs. 9). The extra timeframes, like 2-hour or 6-hour charts, can be useful for certain swing trading approaches. The economic calendar is built directly into MT5, which is a nice touch.

However, MT4's simplicity is a feature, not a bug. I found myself missing the straightforward charting on MT5 sometimes. All those extra indicators can lead to analysis paralysis. The MT5 Depth of Market (DOM) is a powerful tool for seeing market liquidity, but if you're just trading forex majors, it's less critical than for trading futures or equities.

The object-oriented MQL5 language in MT5 is more powerful than MQL4. It allows for more complex EAs and indicators. But for 90% of retail traders, MQL4 is more than sufficient and has a much larger community library of free scripts and EAs to borrow from.

This is the only question that matters. Don't pick based on hype. Pick based on your plan.

You should probably use MT4 if:

• You are a forex-only trader.
• Your strategy involves hedging or locking trades.
• You use popular third-party EAs or indicators that are only coded for MQL4.
• You trade with a prop firm that requires specific MT4 plugins (many do).
• You prefer a simpler, more established environment with vast community support.

You should seriously consider MT5 if:

• You trade multiple asset classes (forex, stocks, futures).
• You are a high-frequency scalper where execution speed is paramount.
• You develop your own complex EAs and need the computational power of MQL5.
• Your broker offers significantly better raw spreads or conditions on their MT5 servers (some do).
• You rely heavily on built-in economic data and advanced market depth tools.

I run both. My main directional swing trades and prop firm accounts are on MT4. My scalping account and any multi-asset portfolio testing happens on MT5. It's not an either/or. It's about using the right tool for the job.

Here's a secret they don't tell you: the platform is only as good as your broker's server connection. A fast MT5 connected to a slow broker is still slow. I've tested this with four different brokers offering both platforms.

My experience with Exness review showed nearly identical execution times on their MT4 and MT5 servers for forex. However, with Pepperstone review, their Razor account on MT5 consistently showed tighter raw spreads by a fraction of a pip on EUR/USD during volatile periods. That's a broker-specific advantage, not a platform one.

MetaQuotes, the developer, has stopped selling new MT4 licenses to brokers. They're pushing everyone toward MT5. Does this mean MT4 is dead? Not even close. It's like asking if Windows 10 is dead because Windows 11 exists. The installed base is massive. The amount of money flowing through MT4 terminals ensures it will be supported for a decade or more.

However, for new development, the energy is on MT5. All the new third-party tools, like advanced trade management terminals, are being built for MT5 first. The community forums for MQL5 are more active with modern coding discussions.

The reality is transitional. For the next 5-7 years, you can safely use MT4. But if you're a new trader starting today and plan to be in this for the long haul, learning MT5 might be the more future-proof choice. Just be prepared for a slightly steeper learning curve and a smaller pool of ready-made, free 'plug and play' trading systems compared to MT4's vast archive.

So, what's on my screens right now? I have three monitors. Monitor one runs MT4 with my main swing trading journal and a few key charts with my core indicators like the MACD indicator and RSI indicator. This is for my longer-term holds. Monitor two runs MT5 for my intraday scalps on XAU/USD guide and EUR/USD guide. I need the speed there. Monitor three is for analysis and my position size calculator.

My final piece of advice is this: Download both. Most brokers let you. Open a demo account on each. Try placing the same trades. Feel the interface. Try to implement your exact entry and exit rules. See which one gets in your way less.

Don't overthink it based on specs alone. The best platform is the one that disappears, letting you focus on the market. For some, that's the familiar, strong MT4. For others, it's the powerful, expansive MT5. Your job is to figure out which camp you're in before you risk real money. I learned that $1,200 lesson so you don't have to.