The Ultimate Lenz Heated Socks Review 2023

lenz heated socks review

Have you ever danced with snowflakes and felt winter's icy fingers nip you? Especially at your toes? We've all been there.

But here's a game-changer: Lenz. From Austria, they combine tradition and technology to create warmth in the snowy heart of their country. 

Curious? Let's journey together and discover the magic behind Lenz.

The Tech Behind Heated Socks 

Imagine a winter morning, the ground blanketed in snow, and you're gearing up for a day out. But there's a twist - your feet feel like they're lounging by a cozy fireplace.Magic? Not quite. It's the marvel of heated socks!

How do heated socks work?

heated socks

Heated socks work by using removable batteries. These batteries send electrical currents through heating elements integrated into the sock lining, delivering warmth directly to the feet and toes.

The Lenz Difference

Lenz socks use Toe Cap technology for even toe warming, powered by long-lasting Lithium packs. Heat is adjustable via an app or battery button, with added circulation benefits from Impulse Control.

Unique Features of Lenz Heated Socks

Material Choice & Technological Integration

Merino Wool

Lenz heated socks utilize natural antimicrobial merino wool. This material not only offers superior warmth but also keeps feet dry and optimizes moisture transportation.

Performance Design

These socks are integrated with the latest in heating technology, ensuring you don't feel any wires or heating elements. Additionally, the design ensures even heating on both the top and bottom of the toes.

Ergonomic Knitting

For maximum comfort and protection, the socks are ergonomically knitted with padding, ensuring they don't compromise the fit of your shoe.

Battery Technology

lenz heated socks powerpack

Long-lasting Power

Ultra-light lithium-ion batteries provide warmth for up to 14 hours.

Quick Charging

The batteries have a short charging time of just 5-7 hours.

Bluetooth Smart Integration

The batteries come with built-in Bluetooth Smart, allowing you to easily adjust the heating settings via a smartphone.

Temperature Control

Multiple Heat Settings

The power button on the batteries offers three different heat settings, or you can adjust infinitely using an app on your smartphone.

Impulse Control Technology

This tech stimulates blood circulation while in use, offering a more comfortable experience.

Lenz Heat App

With the new Lenz heat app, you can quickly and easily regulate the heat control of the battery via your smartphone.

Lenz Heat App in-depth Analysis

lenz app screens

Temperature Control via App

The Lenz heat app allows users to regulate the heat setting of their lithium packs swiftly and without complications. Each connectible lithium pack can be set to a different heat level, ensuring personalized warmth.

User Interface and Experience

The app has seen significant improvements over its initial versions, offering a smoother experience. Some users want a battery indicator that shows the percentage of charge instead of just a bar.

Common Issues and Solutions

Some users have reported issues like the app crashing or difficulty in connecting to the heat packs. While there are occasional connectivity issues, the app generally works most of the time. For any persistent problems, users are advised to contact support or exercise patience and retry later.

User reviews about Lenz heated socks

Positive Feedback

High Quality & Comfort

Many users praised the top-notch quality of the Lenz heated socks. They found them to be comfortable and perfect for various activities.

Effective Heating

The socks effectively warm the feet, making winter activities like skiing, hiking, and even simple tasks like standing outdoors more enjoyable.

Excellent Customer Service

Lenz's customer service is highlighted positively, with users appreciating the prompt responses and assistance they received.

Fast Delivery

Several users mentioned the quick delivery times and efficient service from Lenz.

Additional Products

Apart from the heated socks, other products like heated gloves also received positive feedback for their quality and performance.

Negative Feedback

Inadequate Heating

Some users felt that the socks didn't produce enough heat, especially at the maximum setting.

Battery Issues

There were complaints about the battery life being shorter than expected, especially at higher heat settings. The quality of the batteries was also criticized by some.

App Connectivity

The Lenz heat app was reported to be inconsistent, with occasional connection losses.

Price Concerns

A common concern was the high price of the socks and the additional cost of replacement batteries.

Sizing Issues

Some users found the sizing of the heated socks to be larger than expected.

Overall, some users like the Lenz heated socks for their quality and performance, but worry about the battery, app, and price.

Potential buyers should weigh the pros and cons based on their specific needs and preferences.

Savior Heated Socks VS Lenz Heated Socks

Design & Comfort


Made of 55% CoolMax, 25% Elastic, and 20% Spandex. Features cushioning at the balls of the feet and toes. Non-slip elastic ensures a snug fit.

savior heated socks


Crafted with merino wool and silk. Designed in Austria and tested in the European Alps. Comes with shin protectors and reinforcements at the toe and heel.

lenz heated socks toe cap 5.1

Heating Efficiency


Uses Advanced Carbon Fiber technology. Offers three heat settings: High (140°F), Medium (122°F), and Low (104°F).


Features patented Toe Cap heating element, heating toes from both above and below. No feeling of wires or heating elements.

Battery Life


Lasts up to 9 hours on the Low setting. Recharges in about 3-3.5 hours.


Provides warmth for up to 14 hours. Uses the Lithium Power Pack 1200.



Priced at $89.99.


Priced at $320.48.

Use Cases


Ideal for skiing, snowboarding, hiking in snow, and general winter walking. Also suitable for outdoor workers and winter sports enthusiasts.


Versatile for skiing, snowboarding, hiking, hunting, fishing, cycling, and outdoor work. Recommended for those with Raynaud's Syndrome.

User Reviews

Savior (from Amazon)

Positive: Users find them "wonderful" and "toasty warm." Praised for battery life, fit, and comfort.

Negative: Some find them too tight. Concerns about battery size and sock length.

Lenz (from Trustpilot)

Positive: Lauded for top-notch quality and effectiveness. Described as a "game changer" for cold conditions.

Negative: Some issues with glove quality and battery life.



Offers value for money with good comfort and fit. Suitable for those prioritizing budget and general warmth.


Stands out for advanced technology and longer battery life. Ideal for those seeking premium features and extended warmth.

Your choice between Savior and Lenz will largely depend on your budget, desired features, and specific needs. Both brands cater to different segments of the market, so it's essential to prioritize what matters most to you.

Maintenance and Care Advice for Heated Socks

How to Properly Clean Heated Socks

1.Read the Care Label or User Manual

Always start by reading the instructions provided with your heated socks. This will give you specific guidelines on how to clean them without causing damage.

2.Disconnect and Remove Batteries

Before washing, always remove the batteries to ensure the safety of the electronic components.

3.Secure Connectors

Use waterproof caps to cover the connector cables and zip them back into place. This prevents any damage during the washing process.

4.Washing Method

Hand washing is the most recommended method. However, if you opt for machine washing, use a mesh laundry bag, cold or warm water, and a gentle cycle.

5.Use Mild Detergent

A gentle detergent is best. Avoid using bleach as it can be harsh on the fabric.

6.Avoid Wringing

After washing, squeeze out excess water gently. Do not wring or twist the socks as this can damage the heating elements.


Lay the socks flat on a clean towel or drying rack to air dry. Avoid direct heat or sunlight.


Once clean, store your socks in a dry, well-ventilated area. If you're not using them for a while, remove the batteries and store them separately. For the longevity of the batteries, charge them to 50% every six months.

Tips to Extend the Lifespan of Heated Socks

1.Avoid Machine Washing

Hand washing is the safest method. Machine washing can damage the wiring and heating elements.

2.Protective Measures during Washing

Using a mesh bag during machine washing can protect the socks from other items and potential damage.

3.Avoid Dry Cleaning and Ironing

These methods can damage the insulation of the heating elements and potentially melt the wires.

4.Regular Checks

Periodically inspect your heated socks to ensure the wires, batteries, and heating elements remain in good condition.

Final Thoughts

Lenz, a renowned brand, stands out for its dedication to quality and innovation. Their heated socks are crafted with top-tier materials and advanced technology, offering unmatched warmth and comfort.

Lenz Heated Socks are a great choice for those who want reliable warmth, lasting battery, and a luxurious sensation.

If you're looking for a more budget-friendly option, Savior heated socks are a great pick. They provide good warmth and comfort without costing a fortune.

We'd love to hear from you. If you've tried Lenz Heated Socks, share your experience. Your insights can guide others in making an informed decision.


How long do Lenz heated socks last?

According to the official Lenz Products website, the duration of the Lenz heated socks depends on the type of lithium pack used and the heating level selected. For instance:

With the lithium pack rcB 1200

On heating level 1, it lasts 10.0-14.0 hours; on level 2, it lasts 5.5-7.5 hours; and on level 3, it lasts 3.5-4.5 hours.

With the lithium pack rcB 1800

On heating level 1, it lasts 16.0-20.0 hours; on level 2, it lasts 9.0-11.0 hours; and on level 3, it lasts 5.5-6.5 hours.

How do you turn off Lenz socks?

Standby Mode

Press the power button on the lithium pack to switch the lithium pack to standby mode. This seems to be the primary method to turn off the heating function of the Lenz socks. Source

Pairing Mode

If you're using the LENZ Heat App, ensure that the lithium packs are in pairing mode by pressing the function button for 10 seconds. The middle LED then lights up constantly. This indicates that the socks are ready to be controlled via the app. Source 

For a comprehensive understanding and to ensure safety, always refer to the user manual or the official Lenz website.

How to wash Lenz heated socks?

1.Wash Temperature

Wash the socks at 30°C.

2.Hand Wash

Do not hand wash the socks.

3.Wash Bag

Use the supplied wash bag when washing.


Avoid spinning the socks.


Do not tumble dry. Let them air dry.

6.Other Precautions

Avoid boiling, bleaching, ironing, and dry cleaning.

It's essential to follow these instructions to maintain the longevity and functionality of your Lenz heated socks.

How do you maintain a Lenz battery?

1.Long-Term Storage

After using the lithium pack, discharge its current and then charge it only halfway. It's essential not to fully charge it for storage. Turn off the lithium pack and store it separately from the charger.

2.Regular Maintenance

Every 6 months, discharge the lithium pack and recharge it halfway. This routine ensures the battery's optimal performance and longevity.

3.Checking Charge Status

With the Lenz Battery Pack RCB 1200/RCB 1800, you can monitor the charging status at any time using the Lenz Heat App.

4.Avoid Overcharging

After fully discharging the lithium pack, charge it for about 1-2 hours to ensure it's only half charged.

By following these guidelines, you can ensure the Lenz battery remains in top condition, offering consistent performance over time.

Featured Articles

Savior Heated Socks VS Lenz Heated Socks

12 Best Heated Ski Socks For 2023 Reviewed

How to Wash Heated Socks: A Comprehensive Guide

Post a comment

Please note, comments must be approved before they are published