Kalmartz is a Nigerian online superstore designed to make everyday shopping convenient, bringing a broad range of products together in one place and delivering orders across Nigeria. Its catalogue spans consumer electronics, smartphones and accessories, computers and laptops, televisions, gaming consoles, cameras, audio equipment, and smartwatches. Customers can also browse home and kitchen appliances, office products, clothing, shoes, bags, watches, perfumes, drinks, toys, and games. Featured offers include 4K smart TVs, home theaters, speakers, and seasonal discounts on selected appliances.

The platform serves individual shoppers as well as customers interested in bulk purchases, with options to shop online, contact the team by phone or WhatsApp, and inquire about selling or advertising on Kalmartz. The company highlights vendor-covered warranties on original products, a 30-day return period, secure payments, and international shipping. Its website also provides buying guidance, delivery information, FAQs, and buyer-protection resources. Customers can sign up for email updates about new arrivals, special offers, and promotions. An app is listed as coming soon.