10 Coolest Gadgets Under $100 for Tech Lovers in 2025

Technology keeps evolving, and staying updated doesn’t have to break the bank. Whether you’re a gadget geek or hunting for the perfect gift, this list of 10 coolest gadgets under $100 brings innovation, style, and convenience — all without emptying your wallet! Let’s dive into the future of affordable tech in 2025.

1. Smart Mini Projector

Imagine turning any wall into a movie theater — all for under $100! This portable, pocket-sized projector supports HD resolution, connects to smartphones, and even works wirelessly. It’s perfect for movie nights, gaming, or binge-watching your favorite shows anywhere.

Features:

Wireless screen mirroring
Rechargeable battery for 2-3 hours of playtime
Built-in speakers

2. Bluetooth Sleep Mask with Headphones

For the travelers and late-night scrollers, this gadget combines comfort and functionality. A soft, breathable sleep mask integrated with Bluetooth speakers lets you listen to music, audiobooks, or calming sounds without the discomfort of earbuds.

Why it’s cool:

Blocks out light completely
High-quality stereo sound
10-hour battery life

3. Portable Electric Screwdriver

DIY enthusiasts will love this compact, powerful electric screwdriver. It’s small enough to fit in your pocket yet strong enough to handle furniture assembly, minor repairs, and more.

Features:

Rechargeable via USB-C
Multiple interchangeable bits
Ergonomic, lightweight design

4. Retro Gaming Console

Nostalgia meets modern convenience! This handheld console comes preloaded with thousands of classic games from the 80s and 90s — think Mario, Contra, and more. It connects to TVs too, so you can enjoy those pixelated memories on the big screen.

Why you’ll love it:

Supports multiplayer
Includes old-school controllers
TV compatibility

5. Smartphone Camera Lens Kit

Turn your phone into a professional-grade camera with a lens kit! Perfect for content creators, travel enthusiasts, or anyone who loves capturing the moment. The kit includes wide-angle, macro, and fisheye lenses, all in a sleek carrying case.

Features:

Wide-angle for landscapes
Macro lens for close-ups
Fisheye for creative shots

6. Smart Water Bottle

Stay hydrated — smartly! This futuristic water bottle tracks your water intake and reminds you to drink through gentle LED glow alerts. It even syncs with your fitness tracker for more accurate hydration goals.

Why it’s a must-have:

Long battery life
Bluetooth connectivity
Customizable LED colors

7. Mini Bluetooth Speaker (Waterproof)

Small but powerful, this speaker pumps out impressive sound and is waterproof — making it ideal for pool parties, beach days, or shower concerts.

Features:

360-degree sound
IPX7 waterproof rating
12-hour battery life

8. Electric Coffee Mug Warmer

Coffee lovers, rejoice! This smart warmer keeps your drink hot for hours — perfect for long workdays, gaming marathons, or cozy reading sessions.

Why it’s cool:

Adjustable temperature settings
Automatic shut-off
USB-powered

9. LED Smart Strip Lights

Transform your room with vibrant, customizable LED strip lights. Whether you want a gaming room glow, party vibes, or a chill ambiance — this is a budget-friendly upgrade.

Features: