Ulefone Power Armor 18 vs. Doogee S99: A Deep Dive into Rugged Smartphone Performance

The rugged smartphone market is heating up, offering increasingly capable devices for outdoor enthusiasts and demanding professionals. The Ulefone Power Armor 18 and Doogee S99 both aim to deliver durability and performance, but they take different approaches. The Power Armor 18 boasts a more modern chipset, while the S99 focuses on a balance of features and price. This comparison will dissect their key differences to determine which phone best suits your needs.
Phones Images

🏆 Quick Verdict

For users prioritizing performance and faster charging, the Ulefone Power Armor 18 is the clear winner. Its Dimensity 900 chipset offers a significant performance leap over the Doogee S99’s Helio G96, and the 66W charging dramatically reduces downtime. However, the S99 remains a viable option for budget-conscious buyers.

PHONES
Phone Names Ulefone Power Armor 18 Doogee S99
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66, 711, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66
5G bands1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79 SA/NSA/Sub6-
SpeedHSPA, LTE, 5GHSPA, LTE
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / CDMA / HSPA / LTE
 CDMA2000 1x -
Launch
Announced2022, December 052022, December 05
StatusAvailable. Released 2022, December 05Available. Released 2022, December 05
Body
Dimensions175.2 x 83.4 x 18.8 mm (6.90 x 3.28 x 0.74 in)172 x 82 x 15.5 mm (6.77 x 3.23 x 0.61 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight409 g (14.43 oz)-
 IP68/IP69K dust/water resistant (up to 1.5m for 30 min) Drop-to-concrete resistance from up to 1.5m MIL-STD-810H compliant Accessory connector (ulefone endoscope, microscope)-
Display
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass
Resolution1080 x 2408 pixels, 20:9 ratio (~401 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density)
Size6.58 inches, 104.3 cm2 (~71.4% screen-to-body ratio)6.3 inches, 97.4 cm2 (~69.1% screen-to-body ratio)
TypeIPS LCD, 120HzIPS LCD
Platform
CPUOcta-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
ChipsetMediatek Dimensity 900 (6 nm)Mediatek MT6781 Helio G96 (12 nm)
GPUMali-G68 MC4Mali-G57 MC2
OSAndroid 12Android 12
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (dedicated slot)
Internal256GB 12GB RAM128GB 8GB RAM
Main Camera
FeaturesHexa-LED flash, HDR, panoramaDual-LED flash, HDR, panorama
Single32 MP, f/2.0, (wide), 1.2µm-
Triple108 MP, f/1.9, (wide), 1/1.52", 0.7µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide) 5 MP (macro)108 MP, f/1.9, (wide), 1/1.52", 0.7µm, PDAF 64 MP, f/1.8, (night vision), 2 infrared night vision lights 16 MP, f/1.8, 130˚ (ultrawide)
Video4K@30fps, 1080p@30fps1440p@30fps, 1080p@30fps
Selfie camera
Single32 MP, f/2.0, (wide), 1.2µm32 MP, f/2.0, (wide), 1/2.8", 0.8µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack Yes-
35mm jackYesNo
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE5.1, A2DP, LE
NFCYesYes (market/region dependent)
PositioningGPS (L1+L5), GLONASS, GALILEO, BDS, NavICGPS, GLONASS, GALILEO, BDS
RadioWireless FM radio, RDS, recordingFM radio
USBUSB Type-C 2.0, OTG, magnetic connectorUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-bandWi-Fi 802.11 a/b/g/n/ac, dual-band
Features
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer, thermometerFingerprint (side-mounted), accelerometer, gyro, proximity, compass
Battery
Charging66W wired, 52% in 30 min 15W wireless 5W wireless reversed33W wired, 45% in 30 min 15W wireless Reverse wired
TypeLi-Po 9600 mAh6000 mAh
Misc
ColorsBlackGold, Black
PriceAbout 400 EURAbout 250 EUR

Ulefone Power Armor 18

  • Significantly faster processor for smoother performance.
  • 66W fast charging drastically reduces charging time.
  • More efficient chipset potentially leading to better battery life.

  • Likely higher price point compared to the Doogee S99.
  • May generate more heat under sustained heavy load.

Doogee S99

  • More affordable price point.
  • Decent performance for everyday tasks.
  • Rugged build quality for durability.

  • Slower processor compared to the Ulefone Power Armor 18.
  • Significantly slower charging speed.

Display Comparison

Neither device's display specifications are provided, so a direct comparison is limited. However, given the Power Armor 18's positioning, it likely features a higher-quality panel with better color accuracy and brightness. The S99, targeting a lower price point, may utilize a more basic display. Bezels are likely comparable given the rugged design constraints of both devices, prioritizing protection over minimal bezels.

Camera Comparison

Without detailed camera specifications beyond the chipsets, a precise comparison is difficult. However, the Power Armor 18’s superior processing power allows for more advanced image processing algorithms, potentially resulting in better dynamic range and noise reduction. The S99’s Helio G96 is capable, but will likely struggle to match the image quality achievable with the Dimensity 900, especially in low-light conditions. It's reasonable to assume both phones will include a standard array of lenses, but the Power Armor 18's ISP will likely offer more features and refinement.

Performance

The Ulefone Power Armor 18’s Mediatek Dimensity 900 (6nm) represents a substantial upgrade over the Doogee S99’s Helio G96 (12nm). The Dimensity 900’s Cortex-A78 cores, clocked at 2.4 GHz, deliver significantly faster single-core performance than the S99’s 2.05 GHz Cortex-A76 cores. The 6nm process node also translates to improved power efficiency and reduced thermal throttling during sustained workloads. While both utilize a 6x Cortex-A55 cluster for efficiency, the overall system performance of the Power Armor 18 will be noticeably smoother and more responsive, particularly in graphically intensive games and multitasking scenarios.

Battery Life

Both phones offer 15W wireless charging, but the charging speed difference when wired is significant. The Ulefone Power Armor 18’s 66W wired charging can achieve 52% charge in 30 minutes, while the Doogee S99’s 33W charging only reaches 45% in the same timeframe. This faster charging is a major advantage for the Power Armor 18, reducing downtime considerably. While battery capacity isn't specified, the Dimensity 900’s improved power efficiency may offset a potentially smaller battery size compared to the S99, resulting in comparable real-world battery life.

Buying Guide

Buy the Ulefone Power Armor 18 if you need a rugged phone capable of handling demanding tasks like gaming or video editing, and if minimizing charging time is crucial. Buy the Doogee S99 if you prioritize affordability and a balanced feature set, and don't require the absolute highest level of processing power for intensive applications.

Frequently Asked Questions

❓ Will the Dimensity 900 in the Ulefone Power Armor 18 overheat during prolonged gaming sessions?
While the Dimensity 900 is a powerful chip, the 6nm process and the rugged design of the Power Armor 18 (which typically includes larger internal volumes for heat dissipation) should mitigate overheating. However, sustained, high-intensity gaming will inevitably generate heat. The phone likely incorporates thermal throttling to maintain stability, potentially reducing performance slightly over extended periods.
❓ Is the 33W charging on the Doogee S99 slow enough to be a significant inconvenience?
Compared to the 66W charging on the Ulefone Power Armor 18, the 33W charging is considerably slower. Reaching a full charge will take significantly longer, potentially requiring overnight charging. This is a key trade-off for the S99’s lower price point, and may be a dealbreaker for users who frequently need to quickly top up their battery.
❓ Can either of these phones handle demanding applications like augmented reality (AR) apps?
The Ulefone Power Armor 18, with its Dimensity 900 chipset, is better equipped to handle AR applications due to its superior processing power and GPU performance. The Doogee S99’s Helio G96 may struggle with more complex AR experiences, potentially resulting in lag or reduced frame rates.