FOSSiBOT F109S Rugged Smartphone with MediaTek Helio G81 6nm Processor, 6GB+256GB, 10600mAh Battery, 50MP + 16MP + 5MP Cameras, 6.745″ HD+ Display

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Original price was: $489.99.Current price is: $349.99.

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Why You’ll Love It?

Ultra-Rugged Design with IP68/IP69K & MIL-STD-810H Protection
Built for extreme environments, the FOSSiBOT F109S features IP68/IP69K waterproof and dustproof certification along with MIL-STD-810H military-grade durability, ensuring reliable performance in harsh outdoor and industrial conditions.

Massive 10600mAh Battery for Extended Endurance
Equipped with a 10600mAh high-capacity battery, delivering long standby time and extended talk time, designed to support heavy daily use, outdoor work, and travel without frequent recharging.

Helio G81 6nm Octa-Core Processor with Expandable Performance
Powered by the MediaTek Helio G81 6nm octa-core chipset and Mali-G57 GPU, paired with up to 24GB expanded RAM and 256GB storage, delivering smooth multitasking and efficient performance for daily applications.

6.745″ HD+ Display with Secondary Rear Screen
Features a 6.745-inch HD+ IPS In-Cell display with a 20:9 aspect ratio, plus a 1.32-inch rear secondary display for quick notifications, shortcuts, and enhanced usability.

50MP AI Triple Camera System with Versatile Shooting Modes
Equipped with a 50MP main camera, 16MP front camera, and 5MP macro lens, supporting multiple shooting modes and 1080P video recording, delivering clear and detailed images in various scenarios.

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Expert Optinion For Your Selection

Performance Score
  • All-Day Power Beast — 10600mAh battery with 600+ hours standby for long outdoor missions - 91%
    91%
  • Rugged Durability — IP68/IP69K + MIL-STD-810H protection built for harsh environments - 93%
    93%
  • Smooth Everyday Performance — Helio G81 (6nm) with expandable RAM up to 24GB for stable multitasking - 86%
    86%
  • Practical Dual-Screen Design — 6.745" main display + 1.32" rear screen for quick access and utility - 88%
    88%
90%

Summary

The FOSSiBOT F109S rugged smartphone runs on Android 15 and is powered by the MediaTek Helio G81 (6nm) processor, delivering reliable performance for daily tasks. It comes with 6GB RAM (expandable up to 24GB) and 256GB storage, with support for TF card expansion up to 2TB. The device supports dual SIM, 4G connectivity, WiFi 6, Bluetooth 5.2, NFC, and multi-system navigation for stable communication and positioning.

It features a 6.745-inch HD+ display along with a 1.32-inch rear secondary screen for quick access to key information. Built with IP68/IP69K and MIL-STD-810H certification, it is designed for tough environments. The 10600mAh battery with 18W fast charging обеспечивает long-lasting use, while the camera system includes a 50MP main camera, 16MP front camera, and macro lens for versatile shooting.

Pros

  • Large 10,600mAh battery with long standby and reliable endurance
  • Rugged durability with IP68, IP69K, and MIL-STD-810H certifications
  • Practical dual-screen design with a 1.32″ rear display
  • Ample storage: 256GB ROM + up to 2TB TF card expansion
  • Solid 50MP main camera for everyday photography
  • Full connectivity suite: WiFi 6, Bluetooth 5.2, NFC, and multi-system GPS

Cons

  • HD+ resolution (720×1600) with relatively low pixel density (260 PPI)
  • Entry-level Helio G81 chipset limits high-performance tasks
  • Slow 18W charging for such a large battery
  • Bulky and heavy design (≈385g, 18.5mm)

FOSSiBOT F109S Full Detailed Specifications

General
Model: FOSSiBOT F109S
Operating System: Android 15
Device Type: Rugged smartphone
Protection Rating: IP68 / IP69K / MIL-STD-810H

Design
Dimensions: 176.1 × 81.7 × 18.5 mm
Weight: approximately 385 g
Build: reinforced rugged chassis with shock-resistant structure
Secondary Display: 1.32-inch rear smart display

Display
Main Screen Size: 6.745 inches
Resolution: 720 × 1600 (HD+)
Aspect Ratio: 20:9
Pixel Density: approximately 260 PPI
Panel Type: IPS In-Cell
Typical Brightness: approximately 350–420 nits, peak around 450 nits (based on testing data, not officially specified)

Performance
Processor: MediaTek Helio G81 (6nm)
CPU: Octa-core architecture
GPU: Mali-G52 series integrated graphics
RAM: 6GB physical memory with up to 18GB virtual expansion (up to 24GB total)
Internal Storage: 256GB
Expandable Storage: supports microSD card up to 2TB

Network and SIM
SIM Configuration: dual Nano SIM or Nano SIM plus microSD card (hybrid slot design)
Number of Card Slots: two slots, shared SIM/TF configuration
2G Bands: GSM 850 / 900 / 1800 / 1900 MHz
3G Bands: WCDMA B1 / B2 / B4 / B5 / B6 / B8 / B19
4G LTE FDD Bands: B1 / B2 / B3 / B4 / B5 / B7 / B8 / B12 / B13 / B17 / B18 / B19 / B20 / B25 / B26 / B28A / B28B / B66
4G LTE TDD Bands: B38 / B40 / B41

Connectivity
Wi-Fi: 2.4 GHz and 5 GHz, WiFi 6 support
Bluetooth: version 5.2
NFC: supported, compatible with contactless payments
USB: Type-C interface, USB 2.0 standard
OTG: supported
Audio: Type-C digital audio output
Navigation Systems: GPS, GLONASS, Galileo, BeiDou, QZSS
FM Radio: supported

Camera System
Rear Camera: 50MP main sensor with f/1.8 aperture and PDAF
Macro Camera: 5MP
Front Camera: 16MP
Camera Sensor Models: HI5021 or IMX471 (depending on batch)
Video Recording: up to 1080p

Battery
Capacity: 10600mAh
Battery Type: lithium polymer
Charging Power: 18W fast charging
Standby Time: over 600 hours (theoretical)
Talk Time: over 40 hours (theoretical)

Sensors and Features
Fingerprint Sensor: side-mounted
Face Unlock: supported
Sensors: accelerometer, gyroscope, proximity sensor, ambient light sensor, compass

Ports and Slots
USB Port: Type-C
SIM Slot Type: hybrid tray design
Slot Layout: supports dual SIM or SIM plus TF card configuration

Network and SIM
SIM Configuration: dual Nano SIM or Nano SIM plus microSD card (hybrid slot design)
Number of Card Slots: two slots, shared SIM/TF configuration
2G Bands: GSM 850 / 900 / 1800 / 1900 MHz
3G Bands: WCDMA B1 / B2 / B4 / B5 / B6 / B8 / B19
4G LTE FDD Bands: B1 / B2 / B3 / B4 / B5 / B7 / B8 / B12 / B13 / B17 / B18 / B19 / B20 / B25 / B26 / B28A / B28B / B66
4G LTE TDD Bands: B38 / B40 / B41

Package Contents
Package Box
F109 S Smartphone
Type-C USB Cable
18w Charger
User Manual / Warranty Card
SIM Card Pin

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FOSSiBOT F109S Rugged Smartphone with MediaTek Helio G81 6nm Processor, 6GB+256GB, 10600mAh Battery, 50MP + 16MP + 5MP Cameras, 6.745" HD+ Display FOSSiBOT F109S Rugged Smartphone with MediaTek Helio G81 6nm Processor, 6GB+256GB, 10600mAh Battery, 50MP + 16MP + 5MP Cameras, 6.745" HD+ Display
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Fossibot – A Brand Focused on Power, Durability, and Practical Innovation

Fossibot is an emerging rugged smartphone brand dedicated to developing devices that prioritize endurance, reliability, and user-focused innovation. The company has gained attention for combining large-capacity batteries with robust construction and modern smartphone capabilities. Rather than simply emphasizing protection, Fossibot aims to create products that support active lifestyles, professional users, and travelers who depend on dependable technology every day.

The brand is particularly recognized for its commitment to battery performance. Many Fossibot devices are engineered to provide extended operating times, reducing charging interruptions during work, outdoor activities, and long journeys. This focus on endurance has helped the company build a strong identity within the rugged smartphone market. Users who require long-lasting mobile performance often regard Fossibot as a practical and trustworthy choice.

In addition to battery innovation, Fossibot continues integrating advanced features such as 5G connectivity, high-resolution displays, thermal imaging capabilities, and modern camera systems. By combining these technologies with durable construction and efficient software experiences, the brand delivers devices designed to meet both professional and everyday requirements. Fossibot’s approach centers on solving real-world problems through practical engineering and reliable mobile solutions.

Detail Specs
MODEL:FOSSiBOT F109S
Device TypeRugged Smartphone
Operating SystemAndroid 15
Protection RatingIP68 / IP69K / MIL-STD-810H
Dimensions176.1 × 81.7 × 18.5 mm
Weight≈385 g
Build TypeRugged reinforced structure
Secondary Display1.32-inch rear screen
Main Display Size6.745-inch
Display TypeIPS In-Cell
Resolution720 × 1600 (HD+)
Aspect Ratio20:9
Pixel Density260 PPI
ChipsetMediaTek Helio G81 (6nm)
CPUOcta-core
GPUMali-G57
RAM6GB
RAM ExpansionUp to 24GB (virtual)
Internal Storage256GB
Storage ExpansionUp to 2TB TF card
Rear Camera50MP (F1.8)
Front Camera16MP
Macro Camera5MP
Camera SensorHI5021 / IMX471
Video Recording1080P
Battery Capacity10600mAh
Battery TypeLithium Polymer
Fast Charging18W
Standby Time600+ hours
Talk Time40+ hours
Network Type4G / 3G / 2G
SIM TypeDual Nano SIM
SIM Slot3-in-2 SIM + TF
Wi-Fi2.4GHz / 5GHz / WiFi 6
Bluetooth5.2
NFCSupported
GPSGPS / GLONASS / Galileo / BeiDou / QZSS
Fingerprint SensorSupported
Face UnlockSupported
SensorsGravity / Gyroscope / Proximity / Light / Compass
ToolsCompass / Altimeter / Level / Flashlight
USB PortType-C (USB 2.0)
OTGSupported
Audio JackType-C
Rugged UseHeavy-duty outdoor design
Water ResistanceYes
Dust ResistanceYes
Shock ResistanceYes
Secondary FunctionRear display for quick info
Package CategoryRugged smartphone bundle
Factory Warranty2 Years

Quick Comparison

FOSSiBOT F109S Rugged Smartphone with MediaTek Helio G81 6nm Processor, 6GB+256GB, 10600mAh Battery, 50MP + 16MP + 5MP Cameras, 6.745" HD+ Display removeUlefone Armor 29 Pro Thermal 5G Rugged Phone with 64MP Ultra Night Vision | 6.67" AMOLED Main Display | 1.04" Rear Sub-Display | 21200mAh Mega Battery | Android 15 removeUlefone Armor 29 Ultra 5G Night Vision Rugged Phone with Dimensity 9300+ | 6.67" AMOLED Main Display 120Hz | 1.04" Rear Sub-Display | 8K Video Recording | 21200mAh Mega Battery removeUlefone Armor 33 Pro Rugged Phone with 3.4" Vast Rear Screen | Up to 32GB + 512GB | 5G AI CPU Dimensity 7300X | 25500mAh Mega Battery | Android 14 removeUlefone Armor 33 Night Vision Rugged Phone with 25500mAh Mega Battery | Versatile LED Light & Warning Light | Infinite Halo 2.0 | 118dB Loudspeaker | Android 15 removeUlefone Armor 28 Pro 5G Rugged Smartphone with MediaTek Dimensity 7300, 16GB+512GB, 10600mAh Battery, 50MP + 64MP Night Vision + 50MP Cameras, 120W Fast Charging remove
NameFOSSiBOT F109S Rugged Smartphone with MediaTek Helio G81 6nm Processor, 6GB+256GB, 10600mAh Battery, 50MP + 16MP + 5MP Cameras, 6.745" HD+ Display removeUlefone Armor 29 Pro Thermal 5G Rugged Phone with 64MP Ultra Night Vision | 6.67" AMOLED Main Display | 1.04" Rear Sub-Display | 21200mAh Mega Battery | Android 15 removeUlefone Armor 29 Ultra 5G Night Vision Rugged Phone with Dimensity 9300+ | 6.67" AMOLED Main Display 120Hz | 1.04" Rear Sub-Display | 8K Video Recording | 21200mAh Mega Battery removeUlefone Armor 33 Pro Rugged Phone with 3.4" Vast Rear Screen | Up to 32GB + 512GB | 5G AI CPU Dimensity 7300X | 25500mAh Mega Battery | Android 14 removeUlefone Armor 33 Night Vision Rugged Phone with 25500mAh Mega Battery | Versatile LED Light & Warning Light | Infinite Halo 2.0 | 118dB Loudspeaker | Android 15 removeUlefone Armor 28 Pro 5G Rugged Smartphone with MediaTek Dimensity 7300, 16GB+512GB, 10600mAh Battery, 50MP + 64MP Night Vision + 50MP Cameras, 120W Fast Charging remove
ImageFOSSiBOT F109S Rugged Smartphone with MediaTek Helio G81 6nm Processor, 6GB+256GB, 10600mAh Battery, 50MP + 16MP + 5MP Cameras, 6.745" HD+ DisplayUlefone Armor 29 Pro Thermal 5G Rugged Phone with 64MP Ultra Night Vision | 6.67" AMOLED Main Display | 1.04" Rear Sub-Display | 21200mAh Mega Battery | Android 15Ulefone Armor 29 Ultra 5G Night Vision Rugged Phone with Dimensity 9300+ | 6.67" AMOLED Main Display 120Hz | 1.04" Rear Sub-Display | 8K Video Recording | 21200mAh Mega BatteryUlefone Armor 33 Pro Rugged Phone with 3.4" Vast Rear Screen | Up to 32GB + 512GB | 5G AI CPU Dimensity 7300X | 25500mAh Mega Battery | Android 14Ulefone Armor 33 Night Vision Rugged Phone with 25500mAh Mega Battery | Versatile LED Light & Warning Light | Infinite Halo 2.0 | 118dB Loudspeaker | Android 15Ulefone Armor 28 Pro 5G Rugged Smartphone with MediaTek Dimensity 7300, 16GB+512GB, 10600mAh Battery, 50MP + 64MP Night Vision + 50MP Cameras, 120W Fast Charging
SKUFOSSiBOT F109SArmor 29 Pro ThermalArmor 29 UltraArmor 33 ProArmor 33Armor 28 Pro
Rating
Price Original price was: $489.99.Current price is: $349.99. Original price was: $999.99.Current price is: $799.99. Original price was: $1,499.99.Current price is: $1,199.99. Original price was: $899.99.Current price is: $699.99. Original price was: $799.99.Current price is: $599.99. Original price was: $889.99.Current price is: $669.99.
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Weight0.385 kg0.688 kg0.688 kg0.776 kg0.776 kg0.450 kg
Dimensions8.17 × 1.85 × 17.61 cm8.56 × 3.38 × 17.735 cm8.56 × 3.38 × 17.735 cm8.55 × 3.4 × 18.55 cm8.55 × 3.4 × 18.55 cm8.36 × 1.94 × 17.415 cm
Additional information
Weight0.385 kg
Dimensions8.17 × 1.85 × 17.61 cm
Weight0.688 kg
Dimensions8.56 × 3.38 × 17.735 cm
Weight0.688 kg
Dimensions8.56 × 3.38 × 17.735 cm
Weight0.776 kg
Dimensions8.55 × 3.4 × 18.55 cm
Weight0.776 kg
Dimensions8.55 × 3.4 × 18.55 cm
Weight0.450 kg
Dimensions8.36 × 1.94 × 17.415 cm

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FOSSiBOT F109S Rugged Smartphone with MediaTek Helio G81 6nm Processor, 6GB+256GB, 10600mAh Battery, 50MP + 16MP + 5MP Cameras, 6.745" HD+ Display FOSSiBOT F109S Rugged Smartphone with MediaTek Helio G81 6nm Processor, 6GB+256GB, 10600mAh Battery, 50MP + 16MP + 5MP Cameras, 6.745" HD+ Display
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