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About the Founder

Founder & Technology Analyst

Vairavan K

I am Vairavan K, founder of TechVision.ID and a smartphone retail professional with 18+ years of experience in sales, customer interaction, and technology products. I share practical smartphone reviews, buying guides, and technology insights to help readers make informed decisions.

Popular Posts

Vivo S2 FE 5G: Launch Date, Models, Price, Specs and Our Verdict 01
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Android OS Crash Course for Smartphone/Tablet: Complete Review 2026
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AI Engineering Courses: Learn Machine Learning, Deep Learning & AI Deployment in 2026
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Vivo V80 Review: Price, Specifications, Camera, Battery & Should You Buy It in 2026?
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Programming Numerical Methods in Python Review: Is This the Best Numerical Method Python Course in 2026?
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Cybersecurity Introduction Course Review: Is This Course Cyber Security Training Worth Buying in 2026?

Featured Articles

Vivo S2 FE 5G: Launch Date, Models, Price, Specs and Our Verdict
Android OS Crash Course for Smartphone/Tablet: Complete Review 2026
AI Engineering Courses: Learn Machine Learning, Deep Learning & AI Deployment in 2026
Vivo V80 Review: Price, Specifications, Camera, Battery & Should You Buy It in 2026?
Programming Numerical Methods in Python Review: Is This the Best Numerical Method Python Course in 2026?
Cybersecurity Introduction Course Review: Is This Course Cyber Security Training Worth Buying in 2026?
Android OS Crash Course Review 2026 for Smartphone and Tablet

Android OS Crash Course for Smartphone/Tablet: Complete Review 2026

Introduction Android has become the world’s most popular mobile operating system, powering billions of smartphones, tablets, smartwatches, and other smart devices worldwide. However, many users only know how to use Android features but do not understand how the operating system works behind the scenes. The Android OS Crash Course is designed for beginners, smartphone users,…

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Best AI Engineering Courses 2026 featuring machine learning, deep learning, AI deployment and practical AI skills training

AI Engineering Courses: Learn Machine Learning, Deep Learning & AI Deployment in 2026

Introduction Artificial Intelligence is transforming almost every industry, from healthcare and finance to marketing, automation, software development, and business analytics. Companies are no longer looking only for professionals who understand AI concepts; they need people who can build, deploy, and manage real-world AI solutions. This is why AI Engineering Courses are becoming increasingly popular among…

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Vivo V80 review with ZEISS camera, AMOLED display, 7200mAh battery and 90W fast charging features

Vivo V80 Review: Price, Specifications, Camera, Battery & Should You Buy It in 2026?

Introduction The premium smartphone market is becoming highly competitive, and smartphone buyers are now looking for a perfect combination of camera quality, premium design, powerful performance, and long battery life. Vivo has been focusing strongly on camera innovation, especially with its V-series smartphones. The newly launched Vivo V80 continues this strategy by offering a premium…

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Programming Numerical Methods in Python course review with Python coding and numerical methods concepts

Programming Numerical Methods in Python Review: Is This the Best Numerical Method Python Course in 2026?

Introduction In today’s technology-driven world, Python has become one of the most powerful programming languages for solving complex mathematical and scientific problems. From artificial intelligence and machine learning to engineering simulations and financial modelling, Python is widely used because of its simplicity and powerful scientific libraries. One important area where Python plays a major role…

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Course cyber security Cybersecurity Introduction course review 2026

Cybersecurity Introduction Course Review: Is This Course Cyber Security Training Worth Buying in 2026?

Introduction Cybersecurity has become one of the most important technology skills in today’s digital world. Businesses, governments, and individuals are facing increasing risks from cyber attacks, data breaches, phishing scams, malware, and online threats. As companies continue moving their operations online, the demand for cybersecurity professionals is growing rapidly. For beginners who want to enter…

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Best Smart Home Automation Course in 2026 featuring ESP32 programming, IoT projects, and Google Home integration

Best Smart Home Automation Course in 2026: Build IoT Projects with ESP32 & Google Home

Introduction Smart home technology is rapidly changing the way we live. From voice-controlled lights and automated security systems to intelligent appliances, IoT-based solutions are becoming more popular among homeowners, students, and technology enthusiasts. Learning how these systems work requires practical knowledge of sensors, microcontrollers, programming, and automation platforms. A good Smart Home Automation Course can…

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ChatGPT 101: Learn ChatGPT Prompts & ChatGPT Smart Tips – Is This Udemy Course Worth It?

Introduction ChatGPT has changed the way many people work, learn and create content. From writing emails and generating ideas to summarizing information and improving productivity, AI can now assist with a wide range of everyday tasks. However, getting useful results from ChatGPT isn’t simply about asking questions. Knowing how to give clear instructions and use…

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DirectorAI Review 2026 AI video generator for creating professional marketing videos without complex prompts

DirectorAI Review 2026: AI Video Generator for Creating Professional Marketing Videos

Introduction Creating professional marketing videos traditionally requires expensive cameras, advanced video editing skills, designers, voice artists, and significant production time. For businesses, content creators, and digital marketers, consistently producing high-quality videos can be challenging, especially when they need regular promotional content. Artificial intelligence has transformed the video creation process by helping users generate scripts, visuals,…

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NordVPN VPN service with privacy, fast speeds, global servers and multiple devices

NordVPN vs ExpressVPN vs Surfshark in 2026: Which VPN Is Best?

Introduction: Choosing a VPN in 2026 is no longer simply about hiding your IP address. Today, a good VPN should offer strong encryption, reliable speeds, useful privacy tools, broad device compatibility, a trustworthy no-logs approach, and enough flexibility for streaming, work, travel, gaming, and everyday browsing. Among the most popular premium VPN services are NordVPN,…

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