Dual Screen Laptops: Next Gen Computing?

Dual screen laptops are not yet the next generation of mainstream computing, but they are a significant and growing niche that points toward a more flexible future. While most users still work perfectly well on a single screen, the technology has matured enough that dual-screen models now offer real productivity gains for specific workflows. This article explains what dual-screen laptops are, how they work, their advantages and drawbacks, and whether you should consider buying one.

Formula

The calculator above works out your average running pace and speed. The formula for pace is:

pace (min/km) = total time (min) ÷ distance (km)

And for speed:

speed (km/h) = distance (km) ÷ (total time (min) ÷ 60)

Where:

• t = total time in minutes (e.g., 50 min)
• d = distance in kilometers (e.g., 10 km)
• pace = minutes per kilometer (min/km)
• speed = kilometers per hour (km/h)

Worked Example

Using the default values from the calculator (50 minutes for 10 km):

1. Pace = 50 ÷ 10 = 5.00 min/km
2. Speed = 10 ÷ (50 ÷ 60) = 10 ÷ 0.8333 = 12.00 km/h

The calculator shows an average pace of 5.00 min/km and an average speed of 12.00 km/h.

When to Use This Calculator

Use this calculator to plan your training runs, estimate finish times for a race distance, or check your average speed on a training route. It works for any distance and time combination—walking, running, cycling, or even rowing. The result is an average, so it doesn’t account for hills, stops, or changes in pace, but it gives a reliable figure for flat, steady efforts.

How to Read the Result

The pace tells you how many minutes it takes to cover one kilometer. A lower pace means faster running. The speed is the same information expressed as kilometers per hour. Many runners prefer pace because it’s easier to compare across different distances. For example, a 5:00 min/km pace is 12 km/h, and a 6:00 min/km pace is 10 km/h.

Common Mistakes

• Mixing units: If you measure distance in miles, convert to kilometers first (1 mile = 1.60934 km). The calculator assumes kilometers.
• Rounding too early: Keep extra decimal places during the calculation to avoid a slightly off final pace.
• Using total time wrongly: The time must be the total time for the entire distance, not a split time.

Limitations of the Formula

The pace and speed are averages over the whole distance. They don’t reflect variations in terrain, weather, or your own energy levels. For interval training or hilly routes, you’d need a GPS watch or app to get per-segment data. Also, the formula assumes you maintain a steady effort, which is rarely true in real conditions.

Frequently Asked Questions

Is a dual screen laptop worth it for programming?

For many programmers, yes. Having code on one screen and documentation or a terminal on the other reduces alt-tabbing. Some models allow the second screen to be used as a touch input for quick gestures, which can speed up debugging. However, the extra weight and cost may not be justified if you already use an external monitor at your desk.

Can I use the second screen as a drawing tablet?

Most dual-screen laptops support stylus input on the second display, making them useful for digital art, note-taking, or annotating documents. The touch layer is usually responsive and pressure-sensitive, similar to a dedicated drawing tablet. Check the specifications for stylus support before buying.

Do dual screen laptops have worse battery life?

Yes, typically. The second screen consumes power even when you’re not using it, and many models don’t let you turn it off completely. Manufacturers often include battery-saving modes, but you should expect 20-30% shorter battery life compared to a similar single-screen laptop. For all-day use, keep a charger handy.

Are dual screen laptops heavier than normal laptops?

Generally, yes. The additional screen adds weight and thickness. Most dual-screen models weigh between 1.5 and 2.5 kg (3.3 to 5.5 lbs), which is heavier than an ultrabook but similar to a gaming laptop. If portability is your priority, consider a laptop with a detachable second screen or a portable USB monitor instead.

Can I use the second screen as a primary display if the main one breaks?

In most cases, no. The second screen is usually a companion display and may not have the necessary connectors to act as the sole output. The main screen is the primary output, and the second screen relies on the system’s graphics pipeline. If the main screen fails, you’d need an external monitor.

Will dual screen laptops replace traditional laptops?

Not in the near future. Traditional laptops remain cheaper, lighter, and more familiar. Dual-screen designs are a niche for professionals who need extra screen real estate on the go. As technology improves and prices drop, we may see more hybrid designs, but the classic clamshell is still the standard for most users.

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in t | Finish time | min | 50 | 0
in d | Distance | km | 10 | 0
out pace | Average pace | min/km | t / d | 2
out speed | Average speed | km/h | d / (t / 60) | 2