Ulefone Armor X3 vs. Doogee S40 Pro: A Deep Dive into Budget Rugged Smartphones

The rugged smartphone market caters to a specific need: durability. Both the Ulefone Armor X3 and Doogee S40 Pro aim to deliver that, but at different price points and with varying levels of internal hardware. This comparison dissects their key specifications to determine which offers the best value for users prioritizing resilience and affordability.
Phones Images

🏆 Quick Verdict

For most users, the Doogee S40 Pro is the superior choice. Its Helio A25 chipset, built on a 12nm process, provides a significant performance uplift over the Ulefone Armor X3’s older MT6580, translating to a smoother user experience. While both offer 10W charging, the S40 Pro’s more modern architecture makes it the better all-around performer.

PHONES
Phone Names Ulefone Armor X3 Doogee S40 Pro
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 900 / 2100
4G bands-1, 3, 7, 8, 20
SpeedHSPA 21.1/5.76 MbpsHSPA, LTE
TechnologyGSM / HSPAGSM / HSPA / LTE
Launch
Announced2019, July. Released 2019, July2020, July 17. Released 2020, July
StatusDiscontinuedDiscontinued
Body
Dimensions158 x 77.5 x 13.9 mm (6.22 x 3.05 x 0.55 in)158.2 x 79.4 x 14.1 mm (6.23 x 3.13 x 0.56 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight235 g (8.29 oz)238 g (8.40 oz)
 IP68 dust/water resistant (up to 1.5m for 30 mins) Drop-to-concrete resistance from up to 1.2 m MIL-STD-810G compliant-
Display
Protection-Corning Gorilla Glass
Resolution720 x 1440 pixels, 18:9 ratio (~293 ppi density)720 x 1440 pixels, 18:9 ratio (~295 ppi density)
Size5.5 inches, 78.1 cm2 (~63.8% screen-to-body ratio)5.45 inches, 76.7 cm2 (~61.0% screen-to-body ratio)
TypeIPS LCDIPS LCD
Platform
CPUQuad-core 1.3 GHz Cortex-A7Octa-core (4x1.8 GHz Cortex-A53 & 4x1.5 GHz Cortex-A53)
ChipsetMediatek MT6580 (28 nm)Mediatek MT6762 Helio A25 (12 nm)
GPUMali-400PowerVR GE8320
OSAndroid 9.0 (Pie)Android 10
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (uses shared SIM slot)
Internal32GB 2GB RAM64GB 4GB RAM
 eMMC 5.1-
Main Camera
Dual8 MP, f/1.8, (wide), AF 2 MP13 MP, f/2.8, (wide) Auxiliary lens
FeaturesDual-LED flashLED flash
Video1080p@30fps1080p
Selfie camera
Single5 MP5 MP, f/2.8, (wide)
Video720p@30fpsYes
Sound
3.5mm jack Yes-
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth4.0, A2DP5.0, A2DP, LE
NFCNoYes
PositioningGPSGPS, GLONASS, GALILEO, BDS
RadioStereo FM radio, RDS, recordingFM radio
USBmicroUSB 2.0microUSB 2.0, OTG
WLANWi-Fi 802.11 b/g/nWi-Fi 802.11 a/b/g/n
Features
SensorsAccelerometer, proximity, compassFingerprint (rear-mounted), accelerometer, proximity, compass
Battery
Charging10W wired10W wired
TypeLi-Po 5000 mAh4650 mAh
Misc
ColorsBlack, Red, SilverBlack, Orange, Green
Price-About 150 EUR

Ulefone Armor X3

  • Lowest possible price point in the rugged phone category.
  • Basic functionality for essential communication.
  • Durable build quality expected from the Ulefone Armor series.

  • Outdated MT6580 chipset offers limited performance.
  • Likely struggles with modern apps and multitasking.
  • Limited future software support.

Doogee S40 Pro

  • More powerful and efficient Helio A25 chipset.
  • Octa-core processor enables smoother multitasking.
  • Better overall user experience compared to the Armor X3.

  • 10W charging is relatively slow.
  • Camera performance likely remains basic despite the chipset upgrade.
  • Still a budget device, so premium features are absent.

Display Comparison

Neither Ulefone nor Doogee provide detailed display specifications beyond the basic panel size. However, the difference in processing power suggests the S40 Pro is more likely to handle higher resolution displays smoothly. The absence of information regarding brightness nits or color accuracy implies both devices target basic visibility rather than media consumption excellence. Expect similar viewing experiences in direct sunlight, likely requiring maximum brightness settings.

Camera Comparison

Detailed camera specifications are lacking for both devices. However, given the target market, it’s safe to assume both feature basic camera setups. The focus should be on functionality rather than image quality. The presence of a 2MP macro lens on either device is largely a marketing tactic, offering minimal practical benefit due to the low resolution and limited sensor size. Expect adequate performance in well-lit conditions, but struggle in low-light scenarios.

Performance

The core difference lies in the chipsets. The Ulefone Armor X3 utilizes the Mediatek MT6580, a 28nm quad-core processor. This older architecture is demonstrably less efficient and powerful than the Doogee S40 Pro’s Mediatek MT6762 Helio A25, fabricated on a more advanced 12nm process. The Helio A25’s octa-core configuration (4x1.8 GHz Cortex-A53 & 4x1.5 GHz Cortex-A53) provides a substantial advantage in multi-threaded tasks and overall responsiveness. Users will notice a significant difference in app loading times and multitasking capabilities on the S40 Pro.

Battery Life

Both phones feature 10W wired charging, indicating a similar charging experience – expect around 3-4 hours for a full charge. While battery capacity isn’t specified, the more efficient 12nm Helio A25 in the Doogee S40 Pro will likely translate to slightly better battery life under similar usage conditions. The S40 Pro’s improved processing efficiency means less power draw during everyday tasks, extending the time between charges.

Buying Guide

Buy the Ulefone Armor X3 if you absolutely need the lowest possible price point and your smartphone usage is limited to basic tasks like calls, texts, and light app usage. Buy the Doogee S40 Pro if you want a more responsive device capable of handling multitasking, streaming, and occasional gaming without significant lag, even within a budget-conscious framework.

Frequently Asked Questions

❓ Will the Doogee S40 Pro struggle with popular apps like WhatsApp or Facebook?
While the Helio A25 isn't a high-end processor, it's capable of running apps like WhatsApp and Facebook without significant issues. Expect some loading times and occasional lag when switching between apps, but it should provide a usable experience for social media and messaging.
❓ Is the Ulefone Armor X3 suitable for someone who primarily uses their phone for calls and texts?
Yes, the Ulefone Armor X3 is perfectly adequate for basic communication. Its primary strength is its ruggedness at a very low price point. If your needs are limited to calls, texts, and occasional light browsing, the X3 will suffice.
❓ Can either of these phones handle mobile gaming?
Neither phone is ideal for gaming. The MT6580 in the Ulefone Armor X3 will struggle with even basic games. The Helio A25 in the Doogee S40 Pro can handle some lighter games at low settings, but don't expect a smooth experience with demanding titles.
❓ What type of charging cable do these phones use?
Both the Ulefone Armor X3 and Doogee S40 Pro utilize a USB-C charging port, which is a modern standard and offers convenience and compatibility with many existing cables.