/PRZWT/Do You always fall into Traps with your body fat Scale? These pain points have finally been resolved by Chinese factories
"Just a few months after I bought the scale, it ran out of power. I need to change the battery more frequently than when weighing myself." "The data is always different every time. I have no idea which one is accurate." "After measuring, it only shows my weight. I have no idea how to lose weight at all." - When opening shopping and social media apps, similar negative reviews and jokes about body fat scales always hit the pain points of countless users. When "inaccurate fat measurement, poor battery life and useless functions" of body fat scales became common problems in the industry, Shenzhen Lefu Weighing Instrument Co., LTD., a body fat scale source factory rooted in Shenzhen for 15 years, redefined the intelligent body fat scale with disruptive technological innovation.
From OEM to self-research and development: This factory that supplies products to Xiaomi and Haier has turned body fat scales into "black technology"
In a modern factory in Longgang District, Shenzhen, over 40,000 body fat scales come off the production line every day, among which there are custom-made models from top brands such as Xiaomi, Haier, KEEP and Anker. As one of the first weighing instrument manufacturers in China to be certified as a national High-tech Enterprise, Lefu has spent 15 years building a complete industrial chain from independent research and development to flexible production. It has formed a professional R&D team of over 100 people and established a solid technological barrier with multiple exclusive patents. It has achieved a scale of 520 million yuan in annual sales, and its products are exported to 35 countries in Europe and America. The domestic market share has also remained among the top three for many consecutive years.
While most brands are still relying on contract manufacturing, Lefu has long taken the "R&D - production - service" closed loop to the extreme: from the quality control processes accumulated by contract manufacturing for international big brands to its self-developed Lefu second-generation flexible automated production line, even the industry has commented: "Their quality control standards are stricter than the industry average."
Four core technologies disrupt the industry: This is what a body fat scale should look like
① Black technology of light energy charging: Say goodbye to batteries and charging cables, and achieve never power outages
On the scale surface of the Lefu Solar Energy body fat scale, there is a highly sensitive polycrystalline silicon photovoltaic panel with an exclusive patent. Whether it is sunlight, artificial light, or even indoor natural light, they can all be converted into electrical energy, ensuring continuous power outages and long-lasting operation. Data from the Lefu Laboratory shows that even in a dark and light-free environment, if you weigh once a day for 15 seconds each time, the built-in high-energy storage battery can last for 4 years. If you weigh once every two days, it can last for 8 years. This means that from unpacking to disposal, users who purchase the Lefu solar energy body fat scale hardly need to worry about the charging and battery life of the scale.
②50g precision +49 data items: Only with accuracy can we better understand the user's body
The common problems of traditional body fat scales, such as "the value jumps randomly when stepped on" and "the value is different even after weighing three times in a row", have been completely solved by Fu Le. Its self-developed high-precision sensor can achieve a weighing accuracy of up to 50g, which is equivalent to accurately capturing the weight change of an egg. The true electrode sheet and dual-frequency BIA bioelectrical impedance technology it is equipped with can accurately measure 49 physical data items such as body fat percentage, visceral fat grade and muscle mass. More importantly, these data will be synchronized in real time to the "Calorie Weight Loss Method "APP independently developed by Lefu, generating in-depth health reports including body fat percentage, basal metabolism, water retention rate, etc., allowing users to have a clearer understanding of their own bodies.
③15 years of experience endorsement: The quality confidence of global shipments of over 75 million units
As the original factory that has shipped over 75 million body fat scales, Lefu's technological accumulation is reflected in the details: the electrode plates are made of stainless steel and have not rusted after thousands of contact tests. The scale surface glass can bear a load of up to 150kg. The corners of the scale body have been rounded, making it safer for the elderly and children to use. From raw material procurement to leaving the factory, each scale has to undergo multiple extreme tests such as service life, vibration, temperature, pressure resistance, drop resistance and water resistance - these standards customized for international big brands during the contract manufacturing period are now all applied to the production of its own brand, Lefu.
④AI weight management expert: Fat measurement is just the beginning; scientific intervention is the core
Unlike traditional weighing scales that simply "measure and it's over", Lefu has built a complete ecosystem for healthy weight management: the "Calorie Weight Loss Method "APP, which is used by over 4 million users, can generate personalized plans based on users' body fat data - Office workers suffering from edema after prolonged sitting? Is a new mother's body fat high after giving birth? Are fitness enthusiasts hitting a bottleneck in muscle building? AI will automatically recommend dietary combinations (accurate to the calorie content of each meal), exercise courses (training with or without equipment suitable for various scenarios), and professional nutritionists will provide online guidance to help users eat right and lose weight while lying down. The positive feedback from users on various platforms effectively proves the effectiveness of the weight management closed loop achieved by Lefu through "measurement - analysis - intervention", and further confirms that the Lefu body fat scale is not just a scale, but also a weight management expert by the side of thousands of users.
From Amazon's sales champion to a bestseller in interest-based e-commerce: Lefu has already become an industry benchmark
①15 Years of hard work and Progress: Le Fu Moves from "Behind the Scenes" to "in the Spotlight"
On Amazon US, Loafer kitchen scales once set the record of being the top-selling product. In 2024, LEFU · AI Light Body Magic Box won the "Super Craftsmanship Award", becoming the only body fat scale product selected. In the same year, Lefu, in collaboration with brand ambassador Zou Shiming and his wife, Wang Qiye, and spokesperson He Jie, received significant exposure. They also cooperated with various top-tier live-streaming hosts with tens of millions of views to promote the brand and conduct live-streaming sales, bringing the Lefu brand from the "backstage" to the "front stage". In 2025, Lefu brought its new product, the light energy body fat scale, to Shenzhen TV's "Daily New Products" and received strong exposure. It has also reached a strategic cooperation with Walmart, and its products have successfully entered the Walmart supermarket market in the United States, marking the upgrade of the Lefu body fat scale from an online bestseller to a full-channel coverage.
② The black technology of light energy ignites the market: The sales miracle of high-priced products
In the white-hot competition of the e-commerce battlefield, the Lefu Solar Energy body Fat Scale has redefined the industry benchmark with its phenomenal performance. Its strong performance in the online channel is the best proof of the product strength and user reputation of Lefu. On the Douyin platform, the Lefu body fat scale has repeatedly topped the "Best-selling Body Fat Scale List", "Popularity List", and "Positive Review List", demonstrating strong quality capabilities. It has set a sales record of over 4.4 million GMV within 30 days. The sales volume of its high-priced products far exceeds that of low-priced body fat scales, firmly holding the top position in terms of category sales. Among them, the light energy body fat scale series has performed particularly well: the cumulative sales of the best-selling light energy body fat scale have exceeded 300,000 units. Since its launch in 2025, the newly upgraded light energy body fat scale has sold over 50,000 units rapidly.
In addition, on the Xiaohongshu platform, Lefu has also performed well. The Lefu solar energy body fat scale has repeatedly topped the list of individual body fat scales, and its store ranking has consistently remained among the top three in the industry. It has accumulated over ten thousand genuine user review notes, and the topic # Lefu Body Fat Scale # has received over ten million views, truly achieving both acclaim and commercial success. Become the preferred expert in weight management for an increasing number of consumers who pursue a quality life.
From the tens of millions of GMV celebration in Douyin's self-operated live-streaming room to the word-of-mouth spread on Xiaohongshu, Lefu has demonstrated a deep resonance between technological innovation and user demands with its overwhelming performance across all online channels. While the industry is still engaged in a low-price competition, Lefu has already leveraged its core advantages such as light energy battery life, precise measurement, and AI weight management Establish an irreplaceable position as a "professional weight management expert" in the minds of consumers.
③ Industry Investment: "Lefu Cup" Design Competition and Future Planning
It is worth noting that Lefu has held the "Lefu Cup" Smart Scale Industrial Creative Design Competition for four consecutive years, with a total investment of over 500,000 yuan. It has joined hands with global designers to redefine the form of smart scales. This is not merely a simple technological innovation, but also Lefu's determination to promote the upgrading of the entire smart scale industry.
When the body fat scale is no longer a "tax on intelligence" or a "useless product", but has become a core piece of equipment for family healthy weight management, Lefu has proved over 15 years that a truly good product should not only solve users' pain points but also create value. Search for "Lefu Body Fat Scale" now and let the change start with understanding your own body - an AI weight management expert trusted by over 4 million users, it's worth a try for every one of you who pursues a quality life.
