Logitech Lightspeed G309 Debut: Release Date & Specs

The Logitech G309 Lightspeed wireless gaming mouse made its debut on August 27, 2024. It is a compact, ambidextrous mouse that combines Logitech’s Lightspeed 2.4 GHz wireless technology with the new LIGHTFORCE hybrid optical-mechanical switches, aimed at gamers who want a lightweight, reliable, and affordable wireless option.

Formula

The calculator above computes your average running pace and speed. The formulas are:

• Pace (min/km) = Finish time (minutes) ÷ Distance (km)
• Speed (km/h) = Distance (km) ÷ (Finish time (minutes) ÷ 60)

Where:

• t = finish time in minutes
• d = distance in kilometers

Worked Example

Using the default values: finish time = 50 minutes, distance = 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 a pace of 5.00 min/km and a speed of 12.00 km/h.

Background: What Was Announced

The G309 was unveiled alongside the G PRO X Superlight 2 Dex, but it targets a different audience. While the Superlight 2 Dex is an ultra-light esports mouse, the G309 is a more affordable, versatile option. It replaces the older G305 Lightspeed in Logitech’s lineup, bringing a newer sensor and hybrid switches to the budget wireless segment.

Key Specifications of the G309

• Sensor: HERO 25K (25,600 DPI)
• Switches: LIGHTFORCE hybrid optical-mechanical (rated for 100 million clicks)
• Connectivity: Lightspeed 2.4 GHz wireless, Bluetooth, and wired (USB-C)
• Weight: 68 grams (without AA battery) or 86 grams (with AA battery)
• Battery life: Up to 300 hours on Lightspeed with AA battery, up to 600 hours on Bluetooth
• Shape: Ambidextrous, compact (similar to G305)
• Price at launch: $79.99 USD

How It Works: LIGHTFORCE and HERO Sensor

The G309 uses Logitech’s LIGHTFORCE switches, which combine an optical sensor with a mechanical spring. This gives the fast response of optical switches with the tactile feel of mechanical clicks. The HERO 25K sensor is the same one found in higher-end models, offering excellent tracking and power efficiency. The mouse can be used in three modes: Lightspeed (2.4 GHz dongle), Bluetooth, or wired via USB-C.

How to Choose: G309 vs. G305 vs. G PRO X Superlight

If you’re deciding between these mice, consider your priorities:

• G309: Best for most gamers – affordable, wireless, and has the latest sensor and switches.
• G305: Cheaper (often under $50), but has an older HERO 12K sensor and mechanical switches. Good if you’re on a tight budget.
• G PRO X Superlight 2 Dex: Much lighter (60g), but ergonomic (right-handed only) and more expensive ($159.99). For esports players who want the absolute lightest.

Common Problems and Misconceptions

One common misconception is that the G309 is a direct replacement for the G305 in shape and size. While it is similar, the G309 is slightly taller and has a different curve. Some users report that the LIGHTFORCE switches feel lighter and more responsive than traditional mechanical switches, which can take getting used to. Another issue: the mouse uses a AA battery, which adds weight. Some gamers prefer a rechargeable internal battery, but the AA allows for easy replacement and longer life.

Comparisons: G309 vs. Razer DeathAdder V3 Pro

These two mice are often compared because they are both wireless and popular. The DeathAdder V3 Pro is ergonomic (right-handed), weighs 63g, and has a Focus Pro 30K sensor. It costs more ($149.99). The G309 is ambidextrous, lighter (68g without battery), and cheaper. If you need a right-handed ergonomic shape, the Razer is better. If you want a symmetrical mouse or a better price, the G309 wins.

Battery Life and Performance Tips

To get the most out of your G309:

• Use a lithium AA battery (like Energizer Ultimate Lithium) to reduce weight and extend battery life.
• Turn off the mouse when not in use – it has a power switch on the bottom.
• Use the Lightspeed dongle for gaming (lower latency) and Bluetooth for productivity to save battery.
• Update the firmware via Logitech G Hub to ensure optimal performance.

Frequently Asked Questions

Is the Logitech G309 good for small hands?

Yes, the G309 is a compact mouse, similar to the G305. It works well for small to medium hands, especially with a claw or fingertip grip. Palm grip users with larger hands may find it too small.

Does the G309 have RGB lighting?

No, the G309 does not have RGB lighting. This is a deliberate choice to save battery life and keep the weight down. The only light is a small DPI indicator on the top.

Can I use the G309 while charging?

Yes, you can use the mouse wired while the AA battery is being charged (if you use a rechargeable AA battery). However, the mouse does not have a built-in rechargeable battery; it relies on the AA battery. You can also use it wired without a battery, but it will only work via USB connection.

Is the G309 worth upgrading from the G305?

If you are happy with your G305, the upgrade is not essential. The G309 offers a better sensor (25K vs 12K), LIGHTFORCE switches, and Bluetooth, but the shape is very similar. If you want the latest tech and don’t mind the higher price, it’s a solid upgrade.

What is the difference between Lightspeed and Bluetooth on the G309?

Lightspeed is Logitech’s proprietary 2.4 GHz wireless technology, which offers lower latency (around 1 ms) and is better for gaming. Bluetooth has higher latency but uses less power, giving longer battery life. Use Lightspeed for gaming and Bluetooth for everyday tasks.

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in t | Finish time | min | 50 | 0
in d | Distance | km | 10 | 0 | 100000
out pace | Average pace | min/km | t / d | 2
out speed | Average speed | km/h | d / (t / 60) | 2