IS-4

Tank change history

11.15 — 1 December 2025

• Hit points: 2,450 → 2,650 (+200)
• Penetration: 252 → 258 mm (+6)
• Damage per minute: 2,628 → 2,389 (-239)
• Reload: 9.59 → 10.55 s (+0.96)
• Speed: 44 → 38 km/h (-6)
• Power: 870 → 700 hp (-170)
• Hull armor, front: 149 → 160 mm (+11)
• Hull armor, side: 126 → 140 mm (+14)
• Turret armor, side: 170 → 190 mm (+20)
• Turret hit points: 480 → 580 HP
• Power-to-Weight Ratio: 14.3 → 11.5 hp/t
• Aiming Time: 5.06 → 5.79
• Rate of Fire: 6.3 → 5.7
• Hull hit points: 1,970 → 2,070 HP
• Penetration (3rd) · 122 mm UOF IS4 472: 65 → 68 mm
• Penetration (premium) · 122 mm BM11 IS4: 330 → 340 mm

11.3 — 25 September 2024

• Hit points: 2,400 → 2,450 (+50)
• Damage per minute: 2,527 → 2,628 (+101)
• Reload: 9.97 → 9.59 s (-0.38)
• Speed: 42 → 44 km/h (+2)
• Power: 820 → 870 hp (+50)
• Hull armor, front: 140 → 149 mm (+9)
• Power-to-Weight Ratio: 13.5 → 14.3 hp/t
• Rate of Fire: 6.0 → 6.3
• Hull hit points: 1,920 → 1,970 HP

11.0 — 22 May 2024

• Consumables: Reduced Engine Power Boost

10.7 — 6 March 2024

Legendary camouflage “Tempest”.

• Consumables: Improved Engine Power Boost
• Damage per minute: 2,434 → 2,527 (+93)
• Reload: 10.35 → 9.97 s (-0.38)
• Rate of Fire: 5.8 → 6.0

10.3 — 27 September 2023

• Hit points: 2,650 → 2,400 (-250)
• Penetration: 258 → 252 mm (-6)
• Damage per minute: 2,315 → 2,434 (+119)
• Reload: 10.88 → 10.35 s (-0.53)
• Speed: 38 → 42 km/h (+4)
• Power: 700 → 820 hp (+120)
• Hull traverse: 26.08 → 28.16 °/s (+2.08)
• Hull armor, front: 160 → 140 mm (-20)
• Hull armor, side: 140 → 126 mm (-14)
• Turret armor, side: 190 → 170 mm (-20)
• Power-to-Weight Ratio: 11.5 → 13.5 hp/t
• Aiming Time: 5.78 → 5.06
• Terrain Crossing Capacity: Road: 95 → 104 %
• Turret hit points: 530 → 480 HP
• Hull hit points: 2,120 → 1,920 HP
• Dispersion at 100m: 0.364 → 0.345
• Rate of Fire: 5.5 → 5.8
• Penetration (3rd) · 122 mm UOF IS4 472: 68 → 65 mm
• Penetration (premium) · 122 mm BM11 IS4: 340 → 330 mm

10.0 — 24 May 2023

Legendary camouflage “IS-4 Skilled”.

9.7 — 15 February 2023

Moved to PBR materials.

9.0.0_1 — 12 July 2022

• Hit points: 2,500 → 2,650 (+150)
• Speed: 43 → 38 km/h (-5)
• Power: 750 → 700 hp (-50)
• Dispersion on turret traverse: 0.08 → 0.10
• Turret hit points: 480 → 530 HP
• Power-to-Weight Ratio: 12.3 → 11.5 hp/t
• Hull hit points: 2,020 → 2,120 HP
• Aiming Time: 5.77 → 5.78

8.2 — 18 August 2021

• Hit points: 2,650 → 2,500 (-150)
• Turret armor, front: 250 → 238 mm (-12)
• Turret armor, side: 200 → 190 mm (-10)
• Turret armor, rear: 170 → 162 mm (-8)
• Turret Turn Rate: 17.73 → 14.60 deg/s
• Turret hit points: 530 → 480 HP
• Hull hit points: 2,120 → 2,020 HP
• Aiming Time: 5.78 → 5.77

7.2 — 19 August 2020

• Ammo capacity: 30 → 40 (+10)

6.9 — 25 March 2020

• Hit points: 2,200 → 2,650 (+450)
• Turret hit points: 440 → 530 HP
• Hull hit points: 1,760 → 2,120 HP

4.8 — 27 March 2018

• Hull traverse: 25.73 → 26.08 °/s (+0.35)
• Barrel armour: 50 → 60 mm
• Gun hit points: 192 → 210 HP

4.5 — 18 December 2017

• Hull armor, front: 140 → 160 mm (+20)
• Hull armor, side: 160 → 140 mm (-20)

3.9 — 23 May 2017

• top gun: 122 mm M62-T2
• Damage (premium) · BK-9: 420 → 360
• stock gun: 122 mm D-25T
• Damage (premium): 400 → 340

2.8 — 28 March 2016

• Consumables: Automatic Fire Extinguisher
• Provisions: Extra Combat Rations
• Provisions: Condensed Milk
• Provisions: Standard Fuel
• Provisions: Improved Fuel
• Provisions: Protective Kit
• Consumables: Extra Combat Rations

2.6 — 27 January 2016

• Terrain Crossing Capacity: Water: 45 → 61 %

1.10 — 4 June 2015

• Consumables: Manual Fire Extinguisher

1.9 — 6 May 2015

• Hull traverse: 21.61 → 25.73 °/s (+4.12)
• Dispersion on the move: 0.25 → 0.20
• Dispersion on hull traverse: 0.25 → 0.20
• Terrain Crossing Capacity: Water: 39 → 45 %
• Terrain Crossing Capacity: Road: 87 → 95 %
• Terrain Crossing Capacity: Ground: 70 → 75 %
• top gun: 122 mm M62-T2
• Aiming Time: 6.20 → 5.78
• stock gun: 122 mm D-25T
• Hull Traverse Speed: 21.90 → 26.08 deg/s

1.3 — 25 September 2014

IS-4 added to the game.