Five Arduino boards, one project, and no idea which one to pick, is the search that brings most people to this page. Here is the direct answer: the Arduino Uno is right if you are a beginner or you are following a tutorial, the Arduino Micro if your project needs to be small, the Arduino Due if you need 32-bit speed and more memory, the Arduino Nano 33 BLE if the project needs Bluetooth or a built-in sensor, and the Arduino Portenta H7 if you are building a real product, not a hobby project. Below is why, with real prices from Tech Depot India (techdepot.in) so you can order the right board once.
Start with the Arduino Uno if this is your first board. Buy Arduino Uno Original with Cable online in Bengaluru, India (Rs 1,800) gets you the genuine Italian-made board, or the compatible Arduino Uno R3 with Cable, order online in India (Rs 480) if budget matters more than the original silkscreen. Both run the same ATmega328P chip at 16MHz with 14 digital pins and 6 analog inputs, and almost every beginner tutorial online assumes you own one of these two.
Pick the Arduino Micro when your project has to fit somewhere small. Arduino Micro, check price in India (Rs 1,990) gets you the same ATmega32U4 as a Leonardo in a fraction of the footprint, with native USB so it can act as a keyboard or mouse to a computer, the board wearables and compact builds actually use.
Move up to the Arduino Due only when the Uno runs out of room. Order the Arduino Due online in India (Rs 1,810) replaces the 8-bit ATmega chip with a 32-bit Atmel SAM3X8E ARM Cortex-M3 running at 84MHz, with far more RAM and flash, the board for signal processing, multiple simultaneous sensors, or any sketch that has outgrown the Uno's memory, at a price close to the Uno itself.
Choose the Arduino Nano 33 BLE when the project needs to talk wirelessly or sense its own motion. Arduino Nano 33 BLE with headers, price in India (Rs 3,750) packs Bluetooth Low Energy and a 9-axis IMU onto a Nano-sized board, so a wearable, a gesture controller or a BLE sensor node needs no extra wireless module.
Step up to the Arduino Portenta H7 when the build is no longer a weekend project. Arduino Portenta H7 Development Board, buy online India (Rs 13,680) runs two cores, an 480MHz Cortex-M7 and a 240MHz Cortex-M4, built for industrial and commercial products that need to run for years without a rewrite, not a classroom demo.
Not sure you even need the debate? Skip straight to a matched kit. Buy the Arduino Student Kit online in India (Rs 6,330) and the higher Arduino Education Starter Kit, price in India (Rs 27,410) both pair a genuine board with sensors and a structured syllabus, so a first-year student is not guessing what to buy alongside the board. The Arduino Innovation Kit for Innovative Engineering, order online (Rs 1,600) is the budget entry point for project-based learning, and the Elecrow all-in-one starter kit for Arduino Nano R4, buy in India (Rs 8,664) comes with 20 guided lessons across 16 modules if you want to learn Arduino programming from scratch without hunting for tutorials. For a robotics-first entry, the Educational DIY Robot Kit A13, check price India (Rs 1,389) builds a working robot around a compatible board.
Once the board is chosen, most first projects need one more part: motion. SmartElex L298N Motor Driver with onboard Arduino Uno, buy online (Rs 750) drives two DC motors straight from a Uno-compatible board in one unit, and the SmartElex 10D Motor Driver for Arduino Uno, price India (Rs 2,050) handles higher current loads for a heavier robot chassis. Add the Arduino Uno USB Host Shield, order in India (Rs 700) to read a USB keyboard, joystick or flash drive directly, an 0.5 Inch OLED Display Arduino Shield, buy online India (Rs 2,010) for a compact status screen, or an Ethernet module for Arduino, online India (Rs 4,717) to get any of these boards onto a wired network for a data logger or a web-connected sensor.
None of this works without the right cable. A USB A-B Cable for Arduino 20cm, buy online (Rs 110) is the one that actually ships in the box with most boards, the USB A to B Male Printer Cable 0.3m for Arduino Uno, India price (Rs 110) is the same connector at 30cm, and the USB A to B Cable for Arduino Uno 5 Feet, order online (Rs 240) gives enough slack to keep the laptop off the workbench while the project runs.
Honest advice on what not to buy: do not start with a Portenta H7 as your first board, it is priced and built for a product, not a tutorial, and every beginner guide online is written for the Uno. Do not buy a Due for a simple LED or sensor project, the extra memory and speed go unused and the board costs more for no benefit. And do not buy a bare board without a cable if this is your first purchase, check the product page for what is included before you order, because a board with no cable will not boot on day one.
Buy Arduino boards online in Bengaluru at Tech Depot India, dispatched to Delhi NCR, Hyderabad and pan-India with a GST invoice on every order. Browse the full Arduino collection at Tech Depot India for every board, shield, motor driver and cable in one place, or message the team on WhatsApp or email for help choosing between boards before you buy.
Frequently Asked Questions
Which Arduino board should a complete beginner buy?
The Arduino Uno, either the original or the compatible R3. Nearly every beginner tutorial, video and forum answer online assumes an Uno, so you spend your time learning instead of translating instructions for a different board.
What is the real difference between the Arduino Uno and the Arduino Due?
The Uno runs an 8-bit ATmega328P at 16MHz with 2KB RAM; the Due runs a 32-bit ARM Cortex-M3 at 84MHz with 96KB RAM. Buy the Due only when a project's sketch or buy l298n motor driver arduino uno online memory needs genuinely outgrow the Uno.
Do I need the Arduino Nano 33 BLE for a Bluetooth project?
Yes, if the goal is a compact board with Bluetooth Low Energy and a motion sensor built in. A Uno with a separate Bluetooth module also works but adds wiring and cost the Nano 33 BLE avoids.
Is the Arduino Portenta H7 worth it for a student project?
Usually not. It is priced and engineered for a product that runs continuously in the field, not a college demo. A Student Kit or an Uno covers almost every academic project at a fraction of the cost.
Do you provide a GST invoice and deliver across India?
Yes, every order includes a GST invoice, and Tech Depot India dispatches from Bengaluru to Delhi NCR, Hyderabad and every serviceable pin code across India.