Small POS system

SUNMI D3 MINI

SUNMI D3 MINI is an all-in-one compact POS terminal featuring 10.1″ HD touchscreen, built-in printer, NFC, scanner—perfect for retail counters, food truck, and mobile vendors.

SUNMI D3 Mini POS Terminal - Compact all-in-one POS system

Key features

Discover what makes the D3 Mini exceptional

Compact Main Display

10.1″ IPS touch display (800×1280) with optional 4″ secondary touchscreen or 7-segment display

Integrated Thermal Printer

Built‑in 58 mm or 80 mm printer with up to 250 mm/s speed and optional auto cutter

All‑in‑One Payment

Embedded NFC reader and 1 MP barcode scanner enabling tap‑to‑pay and quick barcode reading

Powerful Processor

Qualcomm hexa‑core 2.4 GHz CPU with UFS 2.2 storage and 3 GB RAM for fast performance

Optional Battery

58 mm version supports a built‑in 2600 mAh battery for up to 4 hours runtime

Modular & Customizable

Modular design for easy maintenance, rubber-sealed printer unit, and customizable logo/branding

Application scenarios

See how D3 Mini performs in real-world environments

Convenience store checkout
Barcode scanning
Compact counter

Convenience store

Scan or tap to pay, get the receipts, and go. Your customers would enjoy shopping in your store more with the quick payment experience.

Technical specifications

Core specifications for the D3 Mini terminal

Product Model

Config.1: TT720, Config.2: TT721 (58mm) / Config.1: TT730, Config.2: TT731 (80mm)

OS

SUNMI OS (based on Android 13)

Processor

Qualcomm hexa-core, up to 2.4GHz

Memory

3GB RAM+32GB ROM

Display

Main: 10.1″ IPS HD, 800*1280, 300nits; 10-point capacitive touch display;
Secondary: 2.4″ seven-segment display (58mm) / 4″ IPS, WVGA, 480*800, 300nits; capacitive touch screen (80mm)

Printer

Built-in 58mm thermal printer, Print speed: up to 100 mm/s, Service life: 50Km, Paper roll OD: 50mm (58mm) / Built-in 80mm thermal printer, Auto cutter, Print speed: 250mm/s, Service life: 150Km, Paper roll OD: 60mm (80mm)

Card Reader

Support TypeA&B card, Mifare card, Felica card; Comply with ISO/IEC 14443, ISO 15693 standards; Read distance: 0-4cm

Scanner

A 1MP built-in scanner for 1D/2D barcode reading

PSAM Card Slot

2*PSAM, 3.0V supported

SIM Card Slot

2*SIM, support 1.8V/3.0V (58mm) / 2*SIM, 1.8V/3.0V supported (80mm)

Speaker

1* 3W

Network

2G&3G&4G

Wi-Fi

2.4GHz & 5GHz, IEEE 802.11 a/b/g/n/ac supported

Bluetooth

Bluetooth 2.1/3.0/4.2/5.0 and BLE supported

Indicator Light

Blue (Power)

Button

1*Power button (lock screen), 1*Reset button (hidden)

Ports

3*USB TypeA port, 1*RJ11 serial port, 1*RJ12 cash drawer port, 1*RJ45 LAN port, 1*audio jack, 1*power port, 1*MicroUSB debug port (hidden) (58mm) / 3*USB 2.0 Type A port, 1*RJ11 serial port, 1*RJ12 cash drawer port, 1*RJ45 LAN port, 1*audio jack, 1*power port, 1*MicroUSB debug port (hidden) (80mm)

Battery

Built-in battery 2600mAh (Only the 58mm 4G version comes with a battery included in the package.) / N/A (80mm)

Power Adapter

Input: AC 100-240V/1.5A, Output: DC 24V/1.5A/36W (58mm) / Input: AC 100-240V/1.7A, Output: DC 24V/1.5A/60W (80mm)

Weight

1.1kg (58mm) / 1.4kg (80mm)

Dimensions (L*W*H)

250*213*91mm (58mm) / 250*231*108mm (80mm)

Environment

Operating temp: 0°C-40°C, Storage temp: -20°C - 60°C

Frequently Asked Questions

What's included with the SUNMI D3 MINI?
The D3 MINI is an all-in-one unit replacing a printer, scanner, and NFC reader. It includes a built-in 80mm Seiko thermal printer, 2D barcode scanner, and NFC module.
How big is the D3 MINI?
It is compact with a 10.1-inch HD display, recommended for space-constrained environments like food trucks and coffee carts.
Does the D3 MINI have Wi-Fi?
Yes, it supports dual-band Wi-Fi (2.4GHz/5GHz) and 4G connectivity, ideal for businesses needing reliable wireless internet access.
What printer paper does the D3 MINI use?
It uses standard 80mm thermal receipt paper (80mm x 58mm roll), which is widely available.
Can the D3 MINI process NFC payments?
Yes, the built-in NFC reader supports SoftPOS, allowing acceptance of Apple Pay and contactless cards directly on the device.
Is the D3 MINI suitable for outdoor use?
It is designed for indoor counter use. For rugged outdoor needs, we recommend the SUNMI V3 Family or M3 handhelds.

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