Wifi Signal Strength vs. Wi-Fi Speed

Introduction

In today’s digitally active world, a reliable and fast internet is a mere necessity rather than a luxury. Working from home, playing games, streaming movies, and attending online classes, a Wi-Fi connection is essential to meet your digital requirements. However, many people often get confused between WiFi signal strength and WiFi speed and assume it to be the same.

WiFi signal strength and speed are two different terminologies. Many people often find it difficult to identify whether the problem is in the electricity supply or the speed of the internet services. However, to address these concerns, understanding the differences between signal strength wifi and speed effectively will help to troubleshoot internet performance issues.

In this blog, let us explore the distinctions between wifi signal strength and speed, explain how it affects internet performance, and provide tips to resolve the issues effectively.

What is Wi-Fi Signal Strength?

Wi-Fi Signal Strength refers to the strength/power of the wireless signal received by your device from the router. It is measured in decibels per milliwatt(dBm).

Wi-Fi signals are indeed very small, it is much less than 1 milliwatt. Its values fall below the reference range, which is the reason why it provides negative numbers.

Wi-Fi signal strength is about connectivity strength and not speed.

Wifi signal strength levels:

1. -30 dBm: Excellent signal

• Device close to the router
• No interruptions and super-fast speed
• Example: Working close to the router

2. -50 dBm: Strong signal

• Pretty strong signal
• Gaming, downloading, and smooth video streaming
• Example: Device in the same room as the router

3. -60 dBm: Good signal

• Suitable for most of the activities
• Uninterrupted HD video streaming
• Example: One room away from the router

4. -70 dBm: Weak signal

• Suitable for browsing, buffering in video streaming
• Video calls may drop off
• Example: A far corner of the house

5. -80 dBm: Very poor signal

• Slow video streaming
• Frequent disconnection for all activities
• Example: Outside the house/behind any thick walls

6. -90 dBm: No signal

• Lost connection
• Sitting too far from the router

The closer your device is to the router, the wifi signal will be stronger. Interferences, such as walls, furniture, and distance can weaken the network strength.

To put in simple words:

• Less negative (-30 dBm): closer to the router and stronger wifi signal
• Higher negative (-80 dBm): far form router and weaker wifi signal

Factors Affecting Wi-Fi Signal Strength

• Router distance from device: The distance between the router and device affects signal strength.
• Physical obstacles: Walls, furniture, and floors also impact the signal strength.
• Device interferences: Smart electric appliances and other gadgets can disrupt wi-fi signals.
• Router placement: Keeping your router in a corner, i.e., away from the usage location, reduces the coverage of wifi. Additionally, the orientation of antenna placement also determines the strength of wifi.

What is Wi-Fi Speed?

The Wi-Fi speed defines how quickly data is transmitted between the internet connection and your device. It is measured in Mbps (Megabits per second)

Wi-Fi speed levels:

1. 1 Mbps: Very slow

• Basic level browsing
• Pages load too slowly

2. 5 Mbps: Slow

• Low quality videos
• Works for social media browsing

3. 10 Mbps: Average

• 1-2 devices can use
• Average level browsing
• HD videos

4. 25 Mbps: Good

• Video calls without buffering
• Full HD video streaming

5. 100- 300 Mbps: Excellent

• Smooth uploads and downloads
• Smart devices
• Connected to several devices
• Higher level gaming
• 4k video streaming

 To put it in simple terms:

• Lower Mbps = slower internet speed
• Higher Mbps = Higher internet speed

Ultimately, Wi-Fi speed also depends on network congestion, internet plan, and router quality.

Factors Affecting Wi-Fi Speed

• Internet Service plan: The internet plan that you have subscribed for, determines the speed.
• Network congestion: When multiple devices are connected to a network beyond its capability, especially during peak usage times, the overall network speed gradually slows down.
• Router capability: Old routers/Old devices may not support high speed internet connections effectively.
• Bandwidth: Higher bandwidth allows increased data transfer rate, thereby slowing the speed.

Key Differences between Wifi Signal Strength and Wifi Speed

Distinguishing features	Wi-Fi Signal Strength	Wi-Fi Speed
Definition	It is about the strength of the internet connection	Internet connection speed
Measuring unit	dBm	Mbps
Example	Full bars on the device	Fast downloads and uploads
Affected by	Distance and thick walls	Bandwidth, network congestion, and internet plan

How Wi-Fi Signal Strength Affects Wi-Fi Speed?

1.  Weak signal, Slow speed

When Wifi signal strength is weak, your device can’t have a stable internet connection, which further leads to:

• Frequent disconnections
• Slow downloads/uploads
• Buffering videos
• Slow website downloading

2.  Strong signal, Slow speed

At times, though you witness a full signal bar on your device, yet you may experience slow internet. It could be owing to below reasons:

• If your internet plan is of a lower speed
• Too many devices
• High network congestion

 3. Strong signal, Fast speed

• Full bars available means full connectivity available with high speed internet connection.
• Smooth streaming videos, no buffering during video, and more.

Tips to Improve Wi-Fi Signal Strength and Wi-Fi Speed

• Place the router in the central part of your home to get better wifi coverage with nothing obstructing its signals.
• Use wifi extenders or mesh network systems to cover dead zones by intensifying signal intensity.
• Switch your router to the present day edition, as an old router may not support higher bandwidth.
• Position your antennas vertically for better wifi signal distribution.
• Reset your modem and router for regular maintenance and check for firmware updates, as it adds new features and boosts the router’s performance.

Wi-Fi Signal Strength vs Wi-Fi Speed- Which one matters more?

Both wifi speed and signal strength are important, but it also depends on the purpose and situation:

• For video streaming and gaming: Speed matters more
• For large homes: Signal strength matters
• For a stable connection: Speed and strength are equally important

For optimal internet performance, it is essential to have high speed and a strong signal.

Conclusion

To address internet related issues effectively, it is essential to understand the differences between wi-fi signal strength and wi-fi speed. People often confuse wi-fi signal strength and speed, much like internet speed and bandwidth.  The signal strength of wifi shows how well your router connects to your device, while the wifi speed determines the rate at which data is transmitted.

No matter if you are an office worker, working from home, a gamer, or an avid video watcher, having a stable and speedy wifi connection significantly enhances your digital day-to-day life, allowing you to leverage its seamless benefits.