Oscal Flat 2 vs. Doogee S86 Pro: A Deep Dive into Rugged Phone Performance and Battery Life

The rugged smartphone market offers a compelling alternative for users prioritizing durability and longevity. The Oscal Flat 2 and Doogee S86 Pro both aim to deliver on this promise, but they take different approaches. The Oscal Flat 2 emphasizes exceptional battery endurance, while the Doogee S86 Pro focuses on a more powerful, albeit older, chipset and faster charging capabilities. This comparison dissects these trade-offs to determine which device best suits your needs.
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🏆 Quick Verdict

For the average user prioritizing all-day (and multi-day) battery life, the Oscal Flat 2 is the clear winner. Its 51:52h endurance significantly outpaces what the Doogee S86 Pro can achieve. However, users who need a bit more processing power for demanding apps or occasional gaming will find the Doogee S86 Pro’s Helio P60 a more responsive choice.

PHONES
Phone Names Oscal Flat 2 Doogee S86 Pro
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 7, 8, 19, 20, 38, 40, 411, 2, 3, 4, 5, 7, 8, 12, 13, 17, 19, 20, 25, 26, 28, 66
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
Announced2025, January2021, June 04
StatusAvailable. Released 2025, JanuaryAvailable. Released 2021, June 15
Body
Dimensions163.2 x 75.2 x 8.8 mm (6.43 x 2.96 x 0.35 in)164.6 x 81.2 x 16.8 mm (6.48 x 3.20 x 0.66 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight192 g (6.77 oz)323 g (11.39 oz)
Display
ProtectionMohs level 5Corning Gorilla Glass
Resolution720 x 1612 pixels, 20:9 ratio (~269 ppi density)720 x 1560 pixels, 19.5:9 ratio (~282 ppi density)
Size6.56 inches, 103.4 cm2 (~84.2% screen-to-body ratio)6.1 inches, 91.3 cm2 (~68.3% screen-to-body ratio)
TypeIPS LCD, 90Hz, 450 nitsIPS LCD
Platform
CPUOcta-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
ChipsetUnisoc T606 (12 nm)Mediatek MT6771 Helio P60 (12 nm)
GPUMali-G57 MP1Mali-G72 MP3
OSAndroid 14, DokeOS 4.0Android 10
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (uses shared SIM slot)
Internal128GB 4GB RAM, 256GB 4GB RAM, 256GB 6GB RAM128GB 8GB RAM
Main Camera
FeaturesLED flash, HDR, panoramaQuad-LED flash, HDR, panorama
Single13 MP, (wide), 1/4.0", 1.12 μm-
Triple-16 MP, f/2.0, (wide), PDAF 8 MP, f/2.2, 130˚, (ultrawide) 2 MP (macro)
Video1080p@30fps1080p
Selfie camera
FeaturesHDR-
Single8 MP, (wide), 1/5.0"8 MP, f/2.2, (wide)
Video1080p@30fps1080p
Sound
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
NFCNoYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, BDS, GALILEO
RadioFM radioFM radio
USBUSB Type-C, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-bandWi-Fi 802.11 a/b/g/n
Features
SensorsFingerprint (side-mounted), accelerometer, proximityFingerprint (side-mounted), accelerometer, gyro, proximity, compass, infrared thermometer (surface temperature)
Battery
Charging10W wired24W wired
Type5000 mAh8500 mAh
Misc
ColorsPhantom Black, Ripple Blue, Sky PurpleBlack, Orange, Red
Price-About 230 EUR
SAR0.70 W/kg (head)     1.40 W/kg (body)-
EU LABEL
Battery51:52h endurance, 1100 cycles-
EnergyClass B-
Free fallClass A (270 falls)-
RepairabilityClass B-

Oscal Flat 2

  • Exceptional battery endurance (51:52h)
  • High battery cycle count (1100 cycles)
  • Potentially better power efficiency with Unisoc T606

  • Slower charging speed (10W)
  • Less powerful processor compared to the Doogee S86 Pro

Doogee S86 Pro

  • More powerful Helio P60 chipset for better performance
  • Faster 24W wired charging
  • Potentially smoother multitasking

  • Lower battery endurance compared to the Oscal Flat 2
  • Older chipset may exhibit more thermal throttling

Display Comparison

Neither device provides display specifications, so a direct comparison is limited. However, given the price points, we can assume both utilize IPS LCD panels. The focus here is on efficiency; a lower-resolution panel on the Oscal Flat 2 could contribute to its superior battery life. Bezels are likely comparable, reflecting the rugged design focus over maximizing screen real estate.

Camera Comparison

Without detailed camera specs, a meaningful comparison is difficult. Both phones likely feature a multi-camera setup geared towards general-purpose photography. The absence of information suggests neither device will excel in low-light conditions or offer advanced features like optical image stabilization. The focus is likely on providing functional cameras for documenting outdoor activities, rather than competing with flagship smartphone camera systems.

Performance

The core difference lies in the chipsets. The Doogee S86 Pro’s MediaTek Helio P60, featuring four Cortex-A73 cores clocked at 2.0 GHz, offers a performance advantage over the Oscal Flat 2’s Unisoc T606. The A73 architecture is demonstrably more powerful than the T606’s Cortex-A75 cores (clocked at 1.6 GHz). This translates to snappier app launches and smoother multitasking on the Doogee. However, the Unisoc T606, built on a 12nm process, is likely more power-efficient, contributing to the Oscal’s impressive endurance. The Doogee’s older chipset may also exhibit more thermal throttling under sustained load.

Battery Life

This is where the Oscal Flat 2 truly shines. Its 51:52h endurance is a significant achievement, indicating exceptional power efficiency. While the Doogee S86 Pro’s battery capacity is unknown, the 24W wired charging is a clear advantage over the Oscal’s 10W charging. This means the Doogee can replenish its battery much faster, but the Oscal’s longer runtime minimizes the need for frequent charging. The Oscal’s reported 1100 charge cycles also suggest a longer lifespan for the battery itself.

Buying Guide

Buy the Oscal Flat 2 if you need a phone that can reliably last through extended periods without access to a charger – ideal for outdoor adventures, travel, or simply minimizing charging frequency. Buy the Doogee S86 Pro if you prefer a slightly more powerful processor for smoother multitasking and app performance, and value the convenience of 24W fast charging to quickly top up the battery when needed.

Frequently Asked Questions

❓ How much faster is the charging on the Doogee S86 Pro compared to the Oscal Flat 2 in a real-world scenario?
While the Oscal Flat 2 charges at 10W, the Doogee S86 Pro’s 24W charging will significantly reduce charge times. Expect the Doogee to go from 0-50% much faster, potentially in under an hour, while the Oscal Flat 2 will take considerably longer. However, remember the Oscal’s exceptional battery life means you’ll likely need to charge it less frequently.
❓ Will the Helio P60 in the Doogee S86 Pro struggle with modern, demanding apps?
The Helio P60 is an older chipset, and while capable, it may exhibit slowdowns or lag when running resource-intensive applications like graphically demanding games or video editing software. It’s suitable for everyday tasks and moderate use, but don’t expect flagship-level performance.
❓ Is the 1100 charge cycle claim for the Oscal Flat 2 realistic, and what does it mean for the battery's lifespan?
1100 charge cycles is a substantial number, suggesting the Oscal Flat 2’s battery is designed for long-term durability. A charge cycle is defined as fully charging and discharging the battery. Reaching 1100 cycles doesn’t mean the battery will suddenly stop working, but it indicates it should retain a significant portion of its original capacity after that many cycles, extending its usable lifespan.